JUNIPER NETWORKS INC, 10-Q filed on 5/9/2012
Quarterly Report
Document and Entity Information
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Apr. 30, 2012
Document Information [Line Items]
 
 
Entity Registrant Name
JUNIPER NETWORKS INC 
 
Entity Central Index Key
0001043604 
 
Document Type
10-Q 
 
Document Period End Date
Mar. 31, 2012 
 
Amendment Flag
false 
 
Document Fiscal Year Focus
2012 
 
Document Fiscal Period Focus
Q1 
 
Current Fiscal Year End Date
--12-31 
 
Entity Well-known Seasoned Issuer
Yes 
 
Entity Voluntary Filers
No 
 
Entity Current Reporting Status
Yes 
 
Entity Filer Category
Large Accelerated Filer 
 
Entity Common Stock, Shares Outstanding
 
529,548 
Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Net revenues:
 
 
Product
$ 771,873 
$ 877,440 
Service
260,625 
224,172 
Total net revenues
1,032,498 
1,101,612 
Cost of revenues:
 
 
Product
280,629 
265,746 
Service
117,814 
99,981 
Total cost of revenues
398,443 
365,727 
Gross margin
634,055 
735,885 
Operating expenses:
 
 
Research and development
269,602 
261,979 
Sales and marketing
257,719 
246,291 
General and administrative
54,666 
44,924 
Amortization of purchased intangible assets
1,178 
1,544 
Restructuring
2,039 
(347)
Acquisition-related
1,142 
4,101 
Total operating expenses
586,346 
558,492 
Operating income
47,709 
177,393 
Other expense, net
(24,431)
(6,462)
Income before income taxes and noncontrolling interest
23,278 
170,931 
Income tax provision
7,008 
41,271 
Consolidated net income
16,270 
129,660 
Adjust for net loss attributable to noncontrolling interest
0 
90 
Net income attributable to Juniper Networks
16,270 
129,750 
Net income per share attributable to Juniper Networks common stockholders:
 
 
Basic
$ 0.03 
$ 0.24 
Diluted
$ 0.03 
$ 0.24 
Shares used in computing net income per share:
 
 
Basic
527,186 
530,789 
Diluted
533,683 
548,825 
Comprehensive income
$ 33,148 
$ 140,847 
Condensed Consolidated Balance Sheets (Unaudited) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Current assets:
 
 
Cash and cash equivalents
$ 2,913,095 
$ 2,910,420 
Short-term investments
517,403 
641,323 
Accounts receivable, net of allowances
450,987 
577,386 
Deferred tax assets, net
168,214 
154,310 
Prepaid expenses and other current assets
181,319 
156,222 
Total current assets
4,231,018 
4,439,661 
Property and equipment, net
647,414 
598,581 
Long-term investments
785,285 
740,659 
Restricted cash and investments
82,504 
78,307 
Purchased intangible assets, net
152,541 
123,114 
Goodwill
3,987,707 
3,928,144 
Other long-term assets
58,554 
75,354 
Total assets
9,945,023 
9,983,820 
Current liabilities:
 
 
Accounts payable
195,420 
324,843 
Accrued compensation
209,263 
223,018 
Accrued warranty
29,276 
28,276 
Deferred revenue
760,621 
712,663 
Income taxes payable
2,566 
12,545 
Other accrued liabilities
163,610 
165,358 
Total current liabilities
1,360,756 
1,466,703 
Long-term debt
999,071 
999,034 
Long-term deferred revenue
238,964 
254,364 
Long-term income taxes payable
111,368 
108,471 
Other long-term liabilities
61,905 
65,590 
Commitments and Contingencies
   
   
Juniper Networks stockholders' equity:
 
 
Convertible preferred stock, $0.00001 par value; 10,000 shares authorized; none issued and outstanding
0 
0 
Common stock, $0.00001 par value; 1,000,000 shares authorized; 529,177 shares and 526,409 shares issued and outstanding at March 31, 2012, and December 31, 2011, respectively
5 
5 
Additional paid-in capital
10,147,785 
10,079,169 
Accumulated other comprehensive loss
(712)
(17,590)
Accumulated deficit
(2,974,595)
(2,972,402)
Total Juniper Networks stockholders' equity
7,172,483 
7,089,182 
Noncontrolling interest
476 
476 
Total equity
7,172,959 
7,089,658 
Total liabilities and equity
$ 9,945,023 
$ 9,983,820 
Condensed Consolidated Balance Sheets Parentheticals (Unaudited) (USD $)
Mar. 31, 2012
Dec. 31, 2011
Convertible preferred stock, par value
$ 0.00001 
$ 0.00001 
Convertible preferred stock, shares authorized
10,000,000 
10,000,000 
Convertible preferred stock, shares issued
0 
0 
Convertible preferred stock, shares outstanding
0 
0 
Common stock, par value
$ 0.00001 
$ 0.00001 
Common stock, shares authorized
1,000,000,000 
1,000,000,000 
Common stock, shares issued
529,177,000 
526,409,000 
Common stock, shares outstanding
529,177,000 
526,409,000 
Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Cash flows from operating activities:
 
 
Consolidated net income
$ 16,270 
$ 129,660 
Adjustments to reconcile consolidated net income to net cash from operating activities:
 
 
Depreciation and amortization
43,396 
40,758 
Non-cash portion of share-based compensation
65,007 
47,586 
Deferred income taxes
(13,904)
1,503 
Loss on equity investments
14,000 
0 
Excess tax benefits from share-based compensation
(4,319)
(39,041)
Amortization of debt issuance costs
236 
0 
Changes in operating assets and liabilities, net of effects from acquisitions:
 
 
Accounts receivable, net
126,462 
125,610 
Prepaid expenses and other assets
(22,272)
(59,372)
Accounts payable
(126,846)
(58,468)
Accrued compensation
(15,426)
(66,510)
Income tax payable
(3,750)
38,099 
Other accrued liabilities
(9,146)
13,981 
Deferred revenue
32,558 
65,844 
Net cash provided by operating activities
102,266 
239,650 
Cash flows from investing activities:
 
 
Purchases of property and equipment
(81,991)
(53,972)
Purchases of trading investments
(2,659)
(2,495)
Purchases of available-for-sale investments
(371,285)
(437,773)
Proceeds from sales of available-for-sale investments
231,366 
193,301 
Proceeds from maturities of available-for-sale investments
222,840 
126,260 
Payment for business acquisition, net of cash and cash equivalents acquired
(90,487)
(28,573)
Changes in restricted cash
35 
0 
Purchases of privately-held and other equity investments, net
(1,122)
(5,972)
Net cash used in investing activities
(93,303)
(209,224)
Cash flows from financing activities:
 
 
Proceeds from issuance of common stock
37,798 
264,113 
Purchases and retirement of common stock
(56,088)
(205,171)
Issuance of long-term debt, net
0 
991,556 
Change in customer financing arrangements
7,683 
12,531 
Excess tax benefit from share-based compensation
4,319 
39,041 
Net cash provided by (used in) financing activities
(6,288)
1,102,070 
Net increase in cash and cash equivalents
2,675 
1,132,496 
Cash and cash equivalents at beginning of period
2,910,420 
1,811,887 
Cash and cash equivalents at end of period
$ 2,913,095 
$ 2,944,383 
Basis of Presentation (Notes)
Basis of Presentation [Text Block]
Basis of Presentation

The unaudited Condensed Consolidated Financial Statements of Juniper Networks, Inc. (“Juniper Networks” or the “Company”) have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information as well as the instructions to Form 10-Q and the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. The Condensed Consolidated Balance Sheet as of December 31, 2011, is derived from the audited consolidated financial statements for the year ended December 31, 2011. In the opinion of management, all adjustments, including normal recurring accruals, considered necessary for a fair presentation have been included. The results of operations for the three months ended March 31, 2012, are not necessarily indicative of the results that may be expected for the year ending December 31, 2012, or any future period. The information included in this Quarterly Report on Form 10-Q should be read in conjunction with “Management's Discussion and Analysis of Financial Condition and Results of Operations,” “Risk Factors,” “Quantitative and Qualitative Disclosures About Market Risk,” and the Consolidated Financial Statements and footnotes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2011.

The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the Consolidated Condensed Financial Statements and accompanying notes. Actual results could differ materially from those estimates.

Beginning in the first quarter of 2012, the Company aligned its organizational structure to focus on its platform and software strategy, which resulted in two reportable segments organized principally by product families: Platform Systems Division ("PSD") and Software Solutions Division ("SSD"). In fiscal 2011, the Company was organized into two reportable segments, Infrastructure and Service Layer Technology ("SLT"). The Company has reclassified the segment data for the prior period to conform to the current period's presentation. The segment change did not impact previously reported consolidated net revenues, operating income, net income, and net income per share. See Note 13, Segments for further discussion of the Company's segment reorganization.

As of March 31, 2012, the Company owned a 60 percent interest in a joint venture with Nokia Siemens Networks B.V. (“NSN”). Given the Company's majority ownership interest in the joint venture, the accounts of the joint venture have been consolidated with the accounts of the Company, and a noncontrolling interest has been recorded for the noncontrolling investor's interests in the net assets and operations of the joint venture. In July 2011, NSN and the Company entered into an agreement to cease operation of and terminate the joint venture. NSN has assumed the activities of the joint venture. The Company is in the process of winding down this joint venture and the termination of this joint venture is not expected to have a material effect on the Company's financial position or results of operations.

Summary of Significant Accounting Policies (Notes)
Summary of Significant Accounting Policies [Text Block]
Summary of Significant Accounting Policies

Recent Accounting Pronouncements

In September 2011, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2011-08, Topic 350 - Intangibles - Goodwill and Other ("ASU 2011-08"), which amends Topic 350 and provides entities an option to perform a qualitative assessment to determine whether further impairment testing on goodwill is necessary. Specifically, an entity has the option to first assess qualitative factors to determine whether it is necessary to perform the current two-step test. If an entity believes, as a result of its qualitative assessment, that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, the quantitative impairment test is required. Otherwise, no further testing is required. The Company adopted this standard in the first quarter of 2012. The Company’s adoption of the standard during the first quarter of 2012 did not impact its consolidated results of operations or financial condition.

In June 2011, the FASB issued ASU No. 2011-05, Topic 220 - Presentation of Comprehensive Income (“ASU 2011-05”), which requires companies to present net income and other comprehensive income in one continuous statement or in two separate, but consecutive, statements. In addition, in December 2011, the FASB issued Accounting Standards Update ("ASU") No. 2011-12, Topic 220 - Comprehensive Income ("ASU 2011-12"), which defers the requirement to present components of reclassifications of other comprehensive income on the face of the income statement. The Company adopted both standards in the first quarter of 2012. The Company’s adoption of the standard during the first quarter of 2012 did not impact its consolidated results of operations or financial condition.

In May 2011, the FASB issued ASU No. 2011-04, Topic 820 - Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs (“ASU 2011-04”), which amends the fair value measurement guidance and includes some enhanced disclosure requirements. The most significant change in disclosures is an expansion of the information required for Level 3 measurements based on unobservable inputs. The Company adopted this standard in the first quarter of 2012. The Company’s adoption of the standard during the first quarter of 2012 did not impact its consolidated results of operations or financial condition.
Business Combination (Notes)
Business Combination [Text Block]
Business Combinations

The Company's consolidated financial statements include the operating results of acquired businesses from the date of each acquisition. Pro forma results of operations for these acquisitions have not been presented as the financial impact to the Company's consolidated results of operations, both individually and in aggregate, is not material.

Q1'12 Acquisitions
In the three months ended March 31, 2012, the Company completed two acquisitions. The fair values of certain tangible assets and liabilities acquired, income based taxes, and residual goodwill are not yet finalized and subject to change. The Company expects to continue to obtain information to assist in determining the fair value of the net assets acquired at the acquisition date during the measurement period. Measurement period adjustments determined to be material will be applied retrospectively to the period of acquisition.
On February 13, 2012, the Company acquired 100% of the equity securities of Mykonos Software, Inc ("Mykonos") for $82.6 million in cash. The acquisition of Mykonos is intended to extend Juniper's security portfolio with an intrusion deception system capable of detecting an attacker before an attack is in process. In connection with this acquisition, the Company acquired net liabilities of $0.8 million, and recognized goodwill of $59.1 million, which was assigned to the SSD segment.
On March 8, 2012, the Company acquired a source code license and patent joint-ownership related to the service management layer of BitGravity, Inc ("BitGravity") Content Delivery Network ("CDN") technology for $13.0 million in cash. The transaction complements the Company's Media Flow Solution and content and media delivery strategy, to enables service providers, on-line media companies, and content delivery networks to deliver on-line content more cost-effectively while simultaneously improving the end-user experience. In connection with this acquisition, the Company acquired net assets of $0.1 million, and recognized goodwill of $0.5 million, which was assigned to the SSD segment.
The following table presents the preliminary purchase consideration allocations for these acquisitions, including cash and cash equivalents acquired (in millions):
 
 
Q1'12 Acquisitions
 
Mykonos
 
BitGravity
 
Total
Net tangible assets/(liabilities) acquired
$
(0.8
)
 
$
0.1

 
$
(0.7
)
Intangible assets acquired
24.3

 
12.4

 
36.7

Goodwill
59.1

 
0.5

 
59.6

    Total
$
82.6

 
$
13.0

 
$
95.6



The Company recognized $1.1 million and $5.1 million of acquisition-related costs during the first quarter of 2012 and 2011, respectively. These acquisition related charges were expensed in the period incurred and reported in the Company's condensed consolidated statements of comprehensive income within cost of revenues and operating expenses.

The goodwill recognized is attributable primarily to expected synergies. None of the goodwill is deductible for U.S. federal income tax purposes for the acquisitions completed during the first quarter of 2012.

Intangible Assets Acquired

The following table presents details of the intangible assets acquired through the business combinations completed during the first quarter of 2012 (in millions, except years):
 
 
Q1'12 Acquisitions
 
Mykonos
 
BitGravity
 
Estimated Useful Life (In Years)
Amount
 
Estimated Useful Life (In Years)
Amount
Existing technology
6
$
19.3

 
3
$
12.4

Trade name and trademarks
7
1.0

 
—
—

In-process research and development
—
4.0

 
—
—

Total
 
$
24.3

 
 
$
12.4



Acquired in-process research and development (“IPR&D”) consists of existing research and development projects at the time of the acquisition. Projects that qualify as IPR&D assets represent those that have not yet reached technological feasibility and have no alternative future use. After initial recognition, acquired IPR&D assets are accounted for as indefinite-lived intangible assets. Development costs incurred after acquisition on acquired development projects are expensed as incurred. Upon completion of development, acquired IPR&D assets are considered amortizable intangible assets. If the IPR&D project is abandoned, the Company writes off the related purchased intangible asset in the period it is abandoned.
Net Income per Share (Notes)
Earnings Per Share [Text Block]
Net Income per Share

The Company computed basic and diluted net income per share attributable to Juniper Networks common stockholders as follows (in millions, except per share amounts):

 
Three Months Ended March 31,
 
2012
 
2011
Numerator:
 
 
 
Net income attributable to Juniper Networks
$
16.3

 
$
129.8

Denominator:
 
 
 
Weighted-average shares used to compute basic net income per share
527.2

 
530.8

Dilutive effect of employee stock awards
6.5

 
18.0

Weighted-average shares used to compute diluted net income per share
533.7

 
548.8

Net income per share attributable to Juniper Networks common stockholders:
 
 
 
Basic
$
0.03

 
$
0.24

Diluted
$
0.03

 
$
0.24



Basic net income per share is computed using net income available to common stockholders and the weighted-average number of common shares outstanding for the period. Diluted net income per share is computed using net income available to common stockholders and the weighted-average number of common shares outstanding plus potentially dilutive common shares outstanding during the period. Dilutive potential common shares consist of common shares issuable upon exercise of stock options, employee stock purchase plan, vesting of restricted stock units ("RSUs"), and vesting of performance share awards ("PSAs").

The Company excludes both outstanding stock options with exercise prices that are greater than the average market price and RSUs with grant date fair market value that are greater than the average market price from the calculation of diluted net income per share because their effect would be anti-dilutive. The Company includes the common shares underlying PSAs in the calculation of diluted net income per share when they become contingently issuable and excludes such shares when they are not contingently issuable. Potentially dilutive common shares of approximately 30.6 million and 5.8 million shares were outstanding but were not included in the computation of diluted net income per share for the three months ended March 31, 2012 and 2011, respectively.

Cash, Cash Equivalents and Investments (Notes)
Cash, Cash Equivalents, and Investments [Text Block]
Cash, Cash Equivalents, and Investments

Cash and Cash Equivalents

The following table summarizes the Company's cash and cash equivalents (in millions):

 
As of
 
March 31,
2012
 
December 31,
2011
Cash:
 
 
 
Demand deposits
$
680.6

 
$
633.7

Time deposits
885.9

 
926.0

Total cash
1,566.5

 
1,559.7

Cash equivalents:
 
 
 
U.S. government securities
102.0

 
—

Government-sponsored enterprise obligations
—

 
24.5

Commercial paper
15.0

 
10.0

Money market funds
1,229.6

 
1,316.2

Total cash equivalents
1,346.6

 
1,350.7

Total cash and cash equivalents
$
2,913.1

 
$
2,910.4


Investments in Available-for-Sale and Trading Securities

The following table summarizes the Company's unrealized gains and losses, based on the specific identification method, and fair value of investments designated as available-for-sale and trading securities, as of March 31, 2012, and December 31, 2011 (in millions):
 
Amortized Cost
 
Gross Unrealized Gains
 
Gross Unrealized Losses
 
Estimated Fair Value
As of March 31, 2012:
 
 
 
 
 
 
 
Fixed income securities:
 
 
 
 
 
 
 
U.S. government securities
$
376.9

 
$
—

 
$
(0.2
)
 
$
376.7

Government-sponsored enterprise obligations
275.7

 
0.5

 
—

 
276.2

Certificates of deposit
25.6

 
—

 
—

 
25.6

Commercial paper
15.0

 
—

 
—

 
15.0

Asset-backed securities
141.8

 
0.2

 
—

 
142.0

Corporate debt securities
566.9

 
1.7

 
(0.2
)
 
568.4

Money market funds
1,229.6

 
—

 
—

 
1,229.6

Total fixed income securities
2,631.5

 
2.4

 
(0.4
)
 
2,633.5

Publicly-traded equity securities
2.6

 
1.3

 
—

 
3.9

Total available-for-sale securities
2,634.1

 
3.7

 
(0.4
)
 
2,637.4

Trading securities (1)
11.9

 
—

 
—

 
11.9

Total
$
2,646.0

 
$
3.7

 
$
(0.4
)
 
$
2,649.3

 
 
 
 
 
 
 
 
Reported as:
 
 
 
 
 
 
 
Cash equivalents
$
1,346.6

 
$
—

 
$
—

 
$
1,346.6

Short-term investments
515.8

 
1.6

 
—

 
517.4

Long-term investments
783.6

 
2.1

 
(0.4
)
 
785.3

Total
$
2,646.0

 
$
3.7

 
$
(0.4
)
 
$
2,649.3

________________________________
(1)
Balance includes the Company's non-qualified deferred compensation plan assets. For additional information, see Note 12, Employee Benefit Plans, under the section Deferred Compensation Plan.

 
Amortized Cost
 
Gross Unrealized Gains
 
Gross Unrealized Losses
 
Estimated Fair Value
As of December 31, 2011:
 
 
 
 
 
 
 
Fixed income securities:
 
 
 
 
 
 
 
U.S. government securities
$
301.1

 
$
—

 
$
(0.1
)
 
$
301.0

Government-sponsored enterprise obligations
430.8

 
0.3

 
(0.1
)
 
431.0

Certificates of deposit
31.8

 
—

 
—

 
31.8

Commercial paper
10.0

 
—

 
—

 
10.0

Asset-backed securities
124.7

 
0.1

 
(0.1
)
 
124.7

Corporate debt securities
508.2

 
1.0

 
(0.5
)
 
508.7

Money market funds
1,316.2

 
—

 
—

 
1,316.2

Total fixed income securities
2,722.8

 
1.4

 
(0.8
)
 
2,723.4

Total available-for-sale securities
2,722.8

 
1.4

 
(0.8
)
 
2,723.4

Trading securities (1)
9.3

 
—

 
—

 
9.3

Total
$
2,732.1

 
$
1.4

 
$
(0.8
)
 
$
2,732.7

 
 
 
 
 
 
 
 
Reported as:
 
 
 
 
 
 
 
Cash equivalents
$
1,350.7

 
$
—

 
$
—

 
$
1,350.7

Short-term investments
640.9

 
0.4

 
—

 
641.3

Long-term investments
740.5

 
1.0

 
(0.8
)
 
740.7

Total
$
2,732.1

 
$
1.4

 
$
(0.8
)
 
$
2,732.7


 
________________________________
(1)
Balance includes the Company's non-qualified deferred compensation plan assets. For additional information, see Note 12, Employee Benefit Plans, under the section Deferred Compensation Plan.

The following table presents the maturities of the Company's available-for-sale and trading securities, as of March 31, 2012 (in millions):

 
Amortized Cost
 
Gross Unrealized Gains
 
Gross Unrealized Losses
 
Estimated Fair Value
Due within one year
$
1,847.9

 
$
0.3

 
$
—

 
$
1,848.2

Due between one and five years
783.6

 
2.1

 
(0.4
)
 
785.3

No contractual maturity
14.5

 
1.3

 
—

 
15.8

Total
$
2,646.0

 
$
3.7

 
$
(0.4
)
 
$
2,649.3



The following tables present the Company's available-for-sale investments that are in an unrealized loss position as of March 31, 2012, and December 31, 2011 (in millions):

 
Less than 12 Months
 
12 Months or Greater
 
Total
 
Fair Value
 
Unrealized Loss
 
Fair Value
 
Unrealized Loss
 
Fair Value
 
Unrealized Loss
As of March 31, 2012
 
 
 
 
 
 
 
 
 
 
 
Corporate debt securities
$
117.8

 
$
(0.2
)
 
$
—

 
$
—

 
$
117.8

 
$
(0.2
)
U.S. government securities
207.2

 
(0.2
)
 
—

 
—

 
207.2

 
(0.2
)
Government-sponsored enterprise obligations (1)
34.5

 
—

 
—

 
—

 
34.5

 
—

Asset-backed securities (1)
23.5

 
—

 
0.4

 
—

 
23.9

 
—

Total
$
383.0

 
$
(0.4
)
 
$
0.4

 
$
—

 
$
383.4

 
$
(0.4
)
________________________________
(1)
Balance includes investments that were in an immaterial unrealized loss position as of March 31, 2012.
 
Less than 12 Months 
 
12 Months or Greater 
 
Total 
 
Fair Value 
 
Unrealized Loss 
 
Fair Value 
 
Unrealized Loss 
 
Fair Value 
 
Unrealized Loss 
As of December 31, 2011
 
 
 
 
 
 
 
 
 
 
 
Corporate debt securities
$
189.9

 
$
(0.5
)
 
$
—

 
$
—

 
$
189.9

 
$
(0.5
)
U.S. government securities
186.7

 
(0.1
)
 
—

 
—

 
186.7

 
(0.1
)
Government-sponsored enterprise obligations
146.0

 
(0.1
)
 
—

 
—

 
146.0

 
(0.1
)
Asset-backed securities (1)
76.8

 
(0.1
)
 
0.3

 
—

 
77.1

 
(0.1
)
Total
$
599.4

 
$
(0.8
)
 
$
0.3

 
$
—

 
$
599.7

 
$
(0.8
)
 ________________________________
(1)
Balance includes investments that were in an immaterial unrealized loss position as of December 31, 2011.

The Company had 89 and 135 investments in unrealized loss positions as of March 31, 2012, and December 31, 2011, respectively. The gross unrealized losses related to these investments were primarily due to changes in market interest rates. For the fixed income securities that have unrealized losses, the Company determined that (i) it does not have the intent to sell any of these investments and (ii) it is not more likely than not that it will be required to sell any of these investments before recovery of the entire amortized cost basis. The Company did not consider these investments to be other-than-temporarily impaired as of March 31, 2012, and December 31, 2011. The Company reviews its investments to identify and evaluate investments that have an indication of possible impairment. The Company aggregates its investments by category and length of time the securities have been in a continuous unrealized loss position to facilitate its evaluation.

Restricted Cash and Investments

The Company classifies cash and investments as restricted cash and investments on its condensed consolidated balance sheet for: (i) amounts held in escrow accounts, as required by certain acquisitions completed between 2005 and 2012; (ii) the India Gratuity Trust and Israel Retirement Trust, which cover statutory severance obligations in the event of termination of the Company's India and Israel employees, respectively; and (iii) the Directors and Officers ("D&O") indemnification trust. During the three months ended March 31, 2012, the Company distributed approximately $79.0 million of restricted cash, mainly related to the 2012 acquisitions.

In connection with the 2010 acquisition of Ankeena Networks, Inc. ("Ankeena"), the Company agreed to pay from escrow a total amount of $10.7 million, representing the cash value of unvested restricted shares of Ankeena common stock as of April 8, 2010, held by certain former Ankeena employees. Through March 31, 2012, the Company has released $10.6 million from escrow and expects to release the remaining $0.1 million from escrow over the next six months.

The following table summarizes the Company's cash and investments that are classified as restricted cash and investments in the condensed consolidated balance sheets (in millions):
 
As of
 
March 31,
2012
 
December 31,
2011
Restricted cash:
 
 
 
Demand deposits
$
0.6

 
$
0.6

Total restricted cash
0.6

 
0.6

Restricted investments:
 
 
 
Corporate debt securities
1.7

 
1.6

Mutual funds
1.0

 
1.0

Money market funds
79.2

 
75.1

Total restricted investments
81.9

 
77.7

Total restricted cash and investments
$
82.5

 
$
78.3



As of March 31, 2012, and December 31, 2011, the unrealized gains and losses related to restricted investments were immaterial.

Privately-Held Investments

As of March 31, 2012, and December 31, 2011, the carrying values of the Company’s privately-held and other equity investments of $36.0 million and $51.8 million, respectively, were included in other long-term assets in the condensed consolidated balance sheets. During the three months ended March 31, 2012, the Company invested $1.1 million in privately-held and other equity investments. During the three months ended March 31, 2011, the Company invested $6.0 million in privately-held and other equity investments.

In the three months ended March 31, 2012, the Company recognized an other-than-temporary non-cash impairment of $14.0 million, related to one of the Company's privately-held equity investments. There were no losses from the Company's privately-held and other equity investments during the three months ended March 31, 2011.
Fair Value Measurements (Notes)
Fair Value Disclosures [Text Block]
Fair Value Measurements

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following tables provide a summary of assets and liabilities measured at fair value on a recurring basis and as reported in the condensed consolidated balance sheets (in millions):
 
Fair Value Measurements at March 31, 2012 Using:
 
 
 
Quoted Prices in Active Markets For Identical Assets
 
Significant Other Observable Remaining Inputs
 
Significant Other Unobservable Remaining Inputs
 
 
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
Total
Available-for-sale debt securities:
 
 
 
 
 
 
 
U.S. government securities
$
187.0

 
$
189.7

 
$
—

 
$
376.7

Government-sponsored enterprise obligations
252.2

 
24.0

 
—

 
276.2

Commercial paper
—

 
15.0

 
—

 
15.0

Corporate debt securities (1)
—

 
570.1

 
—

 
570.1

Certificate of deposit
—

 
25.6

 
—

 
25.6

Asset-backed securities
—

 
142.0

 
—

 
142.0

Mutual funds (2)
1.0

 
—

 
—

 
1.0

Money market funds (3)
1,308.8

 
—

 
—

 
1,308.8

Total available-for-sale debt securities
1,749.0

 
966.4

 
—

 
2,715.4

Available-for-sale equity securities:
 
 
 
 
 
 
 
Publicly-traded equity securities
3.9

 
—

 
—

 
3.9

Total available-for-sale securities
1,752.9

 
966.4

 
—

 
2,719.3

Trading securities:
 
 
 
 
 
 
 
Mutual funds (4)
11.9

 
—

 
—

 
11.9

Total trading securities
11.9

 
—

 
—

 
11.9

Derivative assets:
 
 
 
 
 
 
 
Foreign exchange contracts
—

 
2.4

 
—

 
2.4

Total derivative assets
—

 
2.4

 
—

 
2.4

Total assets measured at fair value
$
1,764.8

 
$
968.8

 
$
—

 
$
2,733.6

 
 
 
 
 
 
 
 
Liabilities measured at fair value:
 
 
 
 
 
 
 
Derivative liabilities:
 
 
 
 
 
 
 
Foreign exchange contracts
$
—

 
$
3.1

 
$
—

 
$
3.1

Total derivative liabilities
—

 
3.1

 
—

 
3.1

Total liabilities measured at fair value
$
—

 
$
3.1

 
$
—

 
$
3.1

________________________________
(1)
Balance includes $1.7 million of restricted investments measured at fair market value, related to the Company's India Gratuity Trust.
(2)
Balance relates to the restricted investments measured at fair market value of the Company's India Gratuity Trust.
(3)
Balance includes $79.2 million of restricted investments measured at fair market value, related to the Company's D&O trust and acquisitions related escrows.
(4)
Balance relates to investments measured at fair value related to the Company's non-qualified deferred compensation plan assets.

 
Fair Value Measurements at March 31, 2012 Using:
 
 
 
Quoted Prices in Active Markets For Identical Assets
 
Significant Other Observable Remaining Inputs
 
Significant Other Unobservable Remaining Inputs
 
 
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
Total
Reported as:
 
 
 
 
 
 
 
Cash equivalents
$
1,229.6

 
$
117.0

 
$
—

 
$
1,346.6

Short-term investments
185.5

 
331.9

 
—

 
517.4

Long-term investments
269.5

 
515.8

 
—

 
785.3

Restricted investments
80.2

 
1.7

 
—

 
81.9

Prepaid expenses and other current assets
—

 
2.4

 
—

 
2.4

Total assets measured at fair value
$
1,764.8

 
$
968.8

 
$
—

 
$
2,733.6

 
 
 
 
 
 
 
 
Total liabilities measured at fair value, reported as:
 
 
 
 
 
 
 
Other accrued liabilities
$
—

 
$
3.1

 
$
—

 
$
3.1

Total liabilities measured at fair value
$
—

 
$
3.1

 
$
—

 
$
3.1



 
Fair Value Measurements at December 31, 2011 Using:
 
 
 
Quoted Prices in Active Markets For Identical Assets
 
Significant Other Observable Remaining Inputs
 
Significant Other Unobservable Remaining Inputs
 
 
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
Total
Assets measured at fair value:
 
 
 
 
 
 
 
Available-for-sale debt securities:
 
 
 
 
 
 
 
U.S. government securities
$
149.3

 
$
151.7

 
$
—

 
$
301.0

Government-sponsored enterprise obligations
314.2

 
116.8

 
—

 
431.0

Commercial paper
—

 
10.0

 
—

 
10.0

Corporate debt securities (1)
—

 
510.3

 
—

 
510.3

Certificate of deposit
—

 
31.8

 
—

 
31.8

Asset-backed securities
—

 
124.7

 
—

 
124.7

Money market funds (2)
1,391.3

 
—

 
—

 
1,391.3

Total available-for-sale debt securities
1,854.8

 
945.3

 
—

 
2,800.1

Total available-for-sale securities
1,854.8

 
945.3

 
—

 
2,800.1

Trading securities:
 
 
 
 
 
 
 
Mutual funds (3)
10.3

 
—

 
—

 
10.3

Total trading securities
10.3

 
—

 
—

 
10.3

Derivative assets:
 
 
 
 
 
 
 
Foreign exchange contracts
—

 
0.4

 
—

 
0.4

Total derivative assets
—

 
0.4

 
—

 
0.4

Total assets measured at fair value
$
1,865.1

 
$
945.7

 
$
—

 
$
2,810.8

 
 
 
 
 
 
 
 
Liabilities measured at fair value:
 
 
 
 
 
 
 
Derivative liabilities:
 
 
 
 
 
 
 
Foreign exchange contracts
$
—

 
$
9.6

 
$
—

 
$
9.6

Total derivative liabilities
—

 
9.6

 
—

 
9.6

Total liabilities measured at fair value
$
—

 
$
9.6

 
$
—

 
$
9.6


________________________________
(1)
Balance includes $1.6 million of restricted investments measured at fair market value, related to the Company's India Gratuity Trust.
(2)
Balance includes $75.1 million of restricted investments measured at fair market value, related to the Company's D&O trust and acquisition related escrows.
(3)
Balance includes $9.3 million of the Company's non-qualified deferred compensation plan assets and $1.0 million of restricted investments measured at fair market value, related to the Company's India Gratuity Trust.

 
Fair Value Measurements at December 31, 2011 Using:
 
 
 
Quoted Prices in Active Markets For Identical Assets
 
Significant Other Observable Remaining Inputs
 
Significant Other Unobservable Remaining Inputs
 
 
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
Total
Total assets measured at fair value, reported as:
 
 
 
 
 
 
 
Cash equivalents
$
1,316.2

 
$
34.5

 
$
—

 
$
1,350.7

Short-term investments
168.9

 
472.4

 
—

 
641.3

Long-term investments
303.9

 
436.8

 
—

 
740.7

Restricted investments
76.1

 
1.6

 
—

 
77.7

Prepaid expenses and other current assets
—

 
0.4

 
—

 
0.4

Total assets measured at fair value
$
1,865.1

 
$
945.7

 
$
—

 
$
2,810.8

Total liabilities measured at fair value, reported as:
 
 
 
 
 
 
 
Other accrued liabilities
$
—

 
$
9.6

 
$
—

 
$
9.6

Total liabilities measured at fair value
$
—

 
$
9.6

 
$
—

 
$
9.6



The Company's policy is to recognize asset or liability transfers among Level 1, Level 2, and Level 3 as of the actual date of the events or change in circumstances that caused the transfer. During the three months ended March 31, 2012, and 2011, the Company had no transfers between levels of the fair value hierarchy of its assets or liabilities measured at fair value.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

As of March 31, 2012, and December 31, 2011, the carrying value of privately-held equity investments measured at fair value on a nonrecurring basis was $6.0 million and $0.4 million, respectively. These privately-held equity investments, which are normally carried at cost, were measured at fair value due to events and circumstances that the Company identified during the quarter as significantly impacting the fair value of the investments. The Company measured the fair value of its privately-held equity investments using an analysis of the financial condition and near-term prospects of the investee, including recent financing activities, cash flow projections, and probability-weighted expected value based on the expected recoverability of the investments. As a result, the Company recognized an other-than-temporary non-cash impairment of $14.0 million in the three months ended March 31, 2012, and classified the investment as Level 3 assets due to the absence of quoted market prices and inherent lack of liquidity. The Company had no impairment charges against its privately-held equity investments in the three months ended March 31, 2011. The Company had no liabilities measured at fair value on a nonrecurring basis as of March 31, 2012 and December 31, 2011.

Assets and Liabilities Not Measured at Fair Value

The carrying amounts of the Company's accounts receivable, financing receivables, accounts payable, and other accrued liabilities approximate fair value due to their short maturities. The fair value of the Company’s long-term debt is disclosed in Note 10, Long-Term Debt and Financing, and was determined using quoted market prices (Level 1).
Derivative Instruments (Notes)
Derivative Instruments [Text Block]
Derivative Instruments

The Company uses derivatives to partially offset its market exposure to fluctuations in certain foreign currencies and does not enter into derivatives for speculative or trading purposes.

The notional amount of Company's foreign currency derivatives are summarized as follows (in millions):
 
As of
 
March 31,
2012
 
December 31,
2011
Cash flow hedges
$
122.4

 
$
184.3

Non-designated hedges
122.9

 
122.7

     Total
$
245.3

 
$
307.0



Cash Flow Hedges

The Company uses foreign currency forward or option contracts to hedge certain forecasted foreign currency transactions relating to cost of services and operating expenses. The derivatives are intended to protect the U.S. Dollar equivalent of the Company's planned cost of services and operating expenses denominated in foreign currencies. These derivatives are designated as cash flow hedges. Execution of these cash flow hedge derivatives typically occurs every month with maturities of one year or less. The effective portion of the derivative's gain or loss is initially reported as a component of accumulated other comprehensive income (loss), and upon occurrence of the forecasted transaction, is subsequently reclassified into the cost of services or operating expense line item to which the hedged transaction relates. The Company records any ineffectiveness of the hedging instruments in interest and other income, net in its consolidated statements of comprehensive income. Cash flows from such hedges are classified as operating activities. All amounts within other comprehensive income (loss) are expected to be reclassified into earnings within the next 12 months.

The total fair value of the Company’s derivative assets recorded in other current assets on the condensed consolidated balance sheet as of March 31, 2012, and December 31, 2011, was $2.3 million and $0.4 million, respectively. The total fair value of the Company’s derivative liabilities located in other accrued liabilities on the condensed consolidated balance sheet as of March 31, 2012, and December 31, 2011, was $3.1 million and $9.6 million, respectively.

During the three months ended March 31, 2012 and 2011, the Company recognized a gain of $6.0 million and $5.2 million, respectively, in accumulated other comprehensive income for the effective portion of its derivative instruments and reclassified a loss of $3.5 million and a gain of $0.5 million, respectively, from other comprehensive income to operating expense in the condensed consolidated statements of comprehensive income.

The ineffective portion of the Company's derivative instruments recognized in its condensed consolidated statements of comprehensive income was immaterial during the three months ended March 31, 2012, and 2011.

Non-Designated Hedges

The Company also uses foreign currency forward contracts to mitigate variability in gains and losses generated from the re-measurement of certain monetary assets and liabilities denominated in foreign currencies. These hedges do not qualify for special hedge accounting treatment. These derivatives are carried at fair value with changes recorded in other income and expense, net. Changes in the fair value of these derivatives are largely offset by re-measurement of the underlying assets and liabilities. Cash flows from such derivatives are classified as operating activities. The derivatives have maturities of approximately two months.

During the three months ended March 31, 2012 and 2011, the Company recognized a net loss of $0.1 million and $0.2 million, respectively, within other expense and income, net, on its condensed consolidated statements of comprehensive income from non-designated derivative instruments.
Goodwill and Purchased Intangible Assets (Notes)
Goodwill and Intangible Assets Disclosure [Text Block]
Goodwill and Purchased Intangible Assets

Goodwill

The following table presents the goodwill allocated to the Company's reportable segments as of and during the three months ended March 31, 2012 (in millions):

 
PSD
 
SSD
 
Total
Balance as of January 1, 2012
$
1,795.6

 
$
2,132.5

 
$
3,928.1

Additions due to business combinations
—

 
59.6

 
59.6

Balance as of March 31, 2012
1,795.6

 
2,192.1

 
3,987.7



The Company had no adjustments to goodwill during the three months ended March 31, 2012. The additions to goodwill during the three months ended March 31, 2012 were based on preliminary allocations of the purchase prices. There were no impairments to goodwill during the three months ended March 31, 2012, and 2011.
 
Purchased Intangible Assets

Changes to the Company’s purchased intangible assets were as follows (in millions):

 
Gross
 
Accumulated Amortization
 
Net
As of March 31, 2012:
 
 
 
 
 
Intangible assets with finite lives:
 
 
 
 
 
Technologies and patents
$
531.2

 
$
(410.5
)
 
$
120.7

Other
92.5

 
(67.5
)
 
25.0

Total intangible assets with finite lives
623.7

 
(478.0
)
 
145.7

IPR&D with indefinite lives
6.8

 
—

 
6.8

Total purchased intangible assets
$
630.5

 
$
(478.0
)
 
$
152.5

 
 
 
 
 
 
As of December 31, 2011:
 
 
 
 
 
Intangible assets with finite lives:
 
 
 
 
 
Technologies and patents
$
499.5

 
$
(404.2
)
 
$
95.3

Other
91.5

 
(66.5
)
 
25.0

Total intangible assets with finite lives
591.0

 
(470.7
)
 
120.3

IPR&D with indefinite lives
2.8

 
—

 
2.8

Total purchased intangible assets
$
593.8

 
$
(470.7
)
 
$
123.1



Amortization of purchased intangible assets included in operating expenses and cost of product revenues totaled $7.3 million and $6.7 million for the three months ended March 31, 2012 and 2011, respectively. There were no impairment charges with respect to the purchased intangible assets in the three months ended March 31, 2012, and 2011.

The purchased intangible assets balance as of March 31, 2012, includes intangible assets acquired through acquisitions completed during the first quarter of 2012. Refer to Note 3, Business Combinations, for further details.

The estimated future amortization expense of purchased intangible assets with finite lives is as follows (in millions):

Years Ending December 31,
 
Amount
2012 (remaining nine months)
 
$
26.2

2013
 
34.7

2014
 
32.8

2015
 
24.8

2016
 
11.1

Thereafter
 
16.1

Total
 
$
145.7

Other Financial Information (Notes)
Other Financial Information [Text Block]
Other Financial Information

Inventories, net

The Company's inventories are stated at the lower of standard cost or market, which approximates actual cost. Inventories, net are reported within prepaid expenses and other current assets on the condensed consolidated balance sheet, and consist of the following (in millions):
 
As of
 
March 31, 2012
 
December 31, 2011
Inventories, net
 
 
 
Production materials
$
77.3

 
$
52.4

Finished goods
14.7

 
16.7

Total inventories, net
$
92.0

 
$
69.1



Warranties

The Company accrues for warranty costs as part of its cost of sales based on associated material costs, labor costs for customer support, and overhead at the time revenue is recognized. This provision is reported as accrued warranty within current liabilities on the condensed consolidated balance sheets. Changes in the Company’s warranty reserve were as follows (in millions):

 
Three Months Ended
 
March 31,
 
2012
 
2011
Beginning balance
$
28.3

 
$
35.9

Provisions made during the period, net
8.9

 
15.3

Change in estimate
—

 
(0.8
)
Actual costs incurred during the period
(7.9
)
 
(12.1
)
Ending balance
$
29.3

 
$
38.3



Deferred Revenue

Details of the Company's deferred revenue, as reported on the condensed consolidated balance sheets, were as follows (in millions):
 
As of
 
March 31,
2012
 
December 31,
2011
Deferred product revenue:
 
 
 
Undelivered product commitments and other product deferrals
$
286.4

 
$
288.1

Distributor inventory and other sell-through items
114.0

 
134.0

Deferred gross product revenue
400.4

 
422.1

Deferred cost of product revenue
(118.4
)
 
(136.9
)
Deferred product revenue, net
282.0

 
285.2

Deferred service revenue
717.6

 
681.8

Total
$
999.6

 
$
967.0

Reported as:
 
 
 
Current
$
760.6

 
$
712.6

Long-term
239.0

 
254.4

Total
$
999.6

 
$
967.0



Deferred product revenue represents unrecognized revenue related to shipments to distributors that have not sold through to end-users, undelivered product commitments, and other shipments that have not met all revenue recognition criteria. Deferred product revenue is recorded net of the related costs of product revenue. Deferred service revenue represents customer payments made in advance for services, which include technical support, hardware and software maintenance, professional services, and training.

Restructuring Liabilities

In the third quarter of 2011, the Company implemented a restructuring plan (the "2011 Restructuring Plan") in an effort to better align its business operations with the current market and macroeconomic conditions. The 2011 Restructuring Plan primarily consisted of certain workforce reductions, and to a lesser extent, contract terminations.

During 2009, the Company implemented a restructuring plan (the "2009 Restructuring Plan") in an effort to better align its business operations with the market and macroeconomic conditions. The 2009 Restructuring Plan included restructuring of certain business functions that resulted in reductions of workforce and facilities. The Company recorded the majority of the restructuring charges associated with this plan during the years ended 2010 and 2009.

The Company recorded net restructuring charges of $2.0 million in the three months ended March 31, 2012, related to remaining restructuring activities from the 2011 Restructuring Plan, and recorded an adjustment of $0.3 million within restructuring in the condensed consolidated statements of comprehensive income during the three months ended March 31, 2011 in connection with the restructuring plan implemented in 2009. As of March 31, 2012, the remaining restructuring liability under the 2011 Restructuring Plan relates to severance costs to be paid out in 2012, as well as facilities-related charges under the two Restructuring Plans, which are expected to be completed by February 2015.

Restructuring charges were based on the Company's restructuring plans that were committed by management. Any changes in the estimates of executing the approved plans will be reflected in the Company's results of operations. Restructuring liabilities are reported within other accrued liabilities and other long-term liabilities on the condensed consolidated balance sheets. The following table provides a summary of changes in the Company’s restructuring liability (in millions):

 
Remaining Liability as of
December 31, 2011
 
Charges
 
Cash payments
 
Non-cash Settlements and Other Adjustments
 
Remaining Liability as of
March 31, 2012
Facilities
$
1.0

 
$
(0.2
)
 
$
(0.2
)
 
$
—

 
$
0.6

Severance, contractual commitments, and other charges
3.1

 
2.2

 
(1.7
)
 
0.9

 
4.5

Total
$
4.1

 
$
2.0

 
$
(1.9
)
 
$
0.9

 
$
5.1



Other Expense and Income, Net

Other expense and income, net consists of the following (in millions):

 
Three Months Ended
 
March 31,
 
2012
 
2011
Interest income
$
2.8

 
$
2.4

Interest expense
(14.2
)
 
(6.5
)
Other
(13.0
)
 
(2.4
)
Other (expense) income, net
$
(24.4
)
 
$
(6.5
)


Interest income primarily includes interest earned on the Company’s cash, cash equivalents, and investments. Interest expense primarily includes interest expense from long-term debt and customer financing arrangements. Other income and expense typically consists of investment and foreign exchange gains and losses and other non-operational income and expense items. In the three months ended March 31, 2012, the Company recognized an other-than-temporary non-cash impairment of $14.0 million, related to one of the Company's privately-held equity investments. The Company had no such charges during the three months ended March 31, 2011.

Long-Term Debt and Financing (Notes)
Long-Term Debt and Financing [Text Block]
Long-Term Debt and Financing

Long-Term Debt

The following table summarizes the Company's long-term debt (in millions, except percentages):

 
As of
 
March 31, 2012
 
Amount
 
Effective Interest Rates
Senior notes:
 
 
 
3.10% fixed-rate notes, due 2016
$
300.0

 
3.12
%
4.60% fixed-rate notes, due 2021
300.0

 
4.63
%
5.95% fixed-rate notes, due 2041
400.0

 
6.01
%
Total senior notes
1,000.0

 
 
Unaccreted discount
(0.9
)
 
 
Total
$
999.1

 
 

The effective interest rates for the notes include the interest on the notes, accretion of the discount, and amortization of issuance costs. At March 31, 2012 and December 31, 2011, the estimated fair value of the notes included in long-term debt was approximately $1,097.6 million and $1,069.8 million, respectively, based on quoted market prices (Level 1).
 
Customer Financing Arrangements

The Company has customer financing arrangements to sell its accounts receivable to a major third-party financing provider. The program does not and is not intended to affect the timing of revenue recognition because the Company only recognizes revenue upon sell-through. Under the financing arrangements, proceeds from the financing provider are due to the Company 30 days from the sale of the receivable. In these transactions with the financing provider, the Company surrendered control over the transferred assets. The accounts receivable were isolated from the Company and put beyond the reach of creditors, even in the event of bankruptcy. The Company does not maintain effective control over the transferred assets through obligations or rights to redeem, transfer, or repurchase the receivables after they have been transferred.

Pursuant to the financing arrangements for the sale of receivables, the Company sold net receivables of $120.6 million and $174.8 million during the three months ended March 31, 2012, and 2011, respectively.

The Company received cash proceeds from the financing provider of $178.5 million and $194.3 million during the three months ended March 31, 2012, and 2011, respectively. The amounts owed by the financing provider were recorded as accounts receivable on the Company’s condensed consolidated balance sheets as of March 31, 2012, and December 31, 2011, was $101.3 million and $162.9 million, respectively.

The portion of the receivable financed that has not been recognized as revenue is accounted for as a financing arrangement and is included in other accrued liabilities and other long-term liabilities in the condensed consolidated balance sheets. As of March 31, 2012, and December 31, 2011, the estimated cash received from the financing provider not recognized as revenue from distributors was $40.9 million and $33.3 million, respectively.
Equity (Notes)
Equity [Text Block]
Equity

Stock Repurchase Activities

In February 2010, the Company’s Board of Directors (the “Board”) approved a stock repurchase program (the “2010 Stock Repurchase Program”) which authorized the Company to repurchase up to $1.0 billion of its common stock. This authorization was in addition to the stock repurchase program approved by the Board in March 2008 (the “2008 Stock Repurchase Program”), which also enabled the Company to repurchase up to $1.0 billion of the Company’s common stock.

The Company repurchased and retired approximately 2.4 million shares of its common stock at an average price of $21.75 per share for an aggregate purchase price of $51.6 million during the three months ended March 31, 2012 under the 2010 Stock Repurchase Program. The Company repurchased and retired approximately 4.8 million shares of its common stock at an average price of $42.14 per share for an aggregate purchase price of $200.2 million during the three months ended March 31, 2011 under the two stock repurchase programs. There were no remaining authorized funds under the 2008 Stock Repurchase Program and $162.2 million remaining authorized funds under the 2010 Stock Repurchase Program as of March 31, 2012.

Comprehensive Income Attributable to Juniper Networks

Comprehensive income attributable to Juniper Networks consists of the following (in millions):

 
Three Months Ended
 
March 31,
 
2012
 
2011
Consolidated net income
$
16.3

 
$
129.7

Other comprehensive income, net of tax:
 
 
 
Change in unrealized gain on investments, net of tax of nil
12.3

 
4.4

Change in foreign currency translation adjustment, net of tax of nil
4.6

 
6.6

Total other comprehensive income, net of tax
16.9

 
11.0

Consolidated comprehensive income
33.2

 
140.7

Adjust for comprehensive loss attributable to noncontrolling interest, net of tax
—

 
0.1

Comprehensive income attributable to Juniper Networks
$
33.2

 
$
140.8

Employee Benefit Plans (Notes)
Employee Benefit Plans [Text Block]
Employee Benefit Plans

Share-Based Compensation Plans

The Company’s share-based compensation plans include the 2006 Equity Incentive Plan (the “2006 Plan”), 2000 Nonstatutory Stock Option Plan (the “2000 Plan”), Amended and Restated 1996 Stock Plan (the “1996 Plan”), as well as various equity incentive plans assumed through acquisitions. Under these plans, the Company has granted (or in the case of acquired plans, assumed) stock options, RSUs, and PSAs. In addition, the Company’s 2008 Employee Stock Purchase Plan (the “2008 Purchase Plan”) permits eligible employees to acquire shares of the Company’s common stock at a 15% discount to the offering price (as determined in the 2008 Purchase Plan) through periodic payroll deductions of up to 10% of base compensation, subject to individual purchase limits of 6,000 shares in any twelve-month period or $25,000 worth of stock, determined at the fair market value of the shares at the time the stock purchase option is granted, in one calendar year.

The 2006 Plan, adopted and approved by the Company’s stockholders in May 2006, had an initial authorized share reserve of 64.5 million shares of common stock plus the addition of any shares subject to options under the 2000 Plan and the 1996 Plan that were outstanding as of May 18, 2006, and that subsequently expire unexercised, up to a maximum of an additional 75.0 million shares. In addition, the Company’s stockholders’ approved amendments to the 2006 Plan that increased the number of shares reserved for issuance under the 2006 Plan, thereby increasing the authorized share reserve by 30.0 million shares in each of May 2010 and 2011. As of March 31, 2012, the 2006 Plan had 64.9 million shares subject to currently outstanding equity awards and 22.2 million shares available for future issuance.

In connection with past acquisitions, the Company assumed stock option and RSU awards under the stock plans of the acquired companies. The Company exchanged those awards for Juniper Networks' stock options and RSUs. As of March 31, 2012, stock options and RSUs covering approximately 1.6 million shares of common stock were outstanding under awards assumed through the Company's past acquisitions.

Stock Option Activities

Since 2006, the Company has granted stock option awards that have a maximum contractual life of seven years from the date of grant. Prior to 2006, stock option awards generally had a ten-year contractual life from the date of grant. The following table summarizes the Company’s stock option activity and related information as of and for the three months ended March 31, 2012 (in millions, except for per share amounts and years):

 
Outstanding Options
 
Number of Shares
 
Weighted Average
Exercise Price per Share
 
Weighted Average Remaining Contractual Term (In Years)
 
Aggregate Intrinsic Value
Balance at January 1, 2012
38.6

 
$
23.98

 
 
 
 
Options granted
3.0

 
22.93

 
 
 
 
Options canceled
(0.5
)
 
28.48

 
 
 
 
Options exercised
(0.7
)
 
12.67

 
 
 
 
Options expired
(0.2
)
 
26.18

 
 
 
 
Balance at March 31, 2012
40.2

 
$
24.02

 
3.7

 
$
106.4

 
 
 
 
 
 
 
 
As of March 31, 2012:
 
 
 
 
 
 
 
Vested or expected-to-vest options
38.3

 
$
23.80

 
3.6

 
$
104.5

Exercisable options
27.7

 
$
22.47

 
2.9

 
$
87.7



Aggregate intrinsic value represents the difference between the Company’s closing stock price on the last trading day of the period, which was $22.88 per share as of March 31, 2012, and the exercise price multiplied by the number of related options. The pre-tax intrinsic value of options exercised, representing the difference between the fair market value of the Company’s common stock on the date of the exercise and the exercise price of each option, was $6.9 million for the three months ended March 31, 2012. Total fair value of options vested for the three months ended March 31, 2012, was $27.9 million.

Restricted Stock Units and Performance Share Awards Activities

RSUs generally vest over a period of three to four years from the date of grant, and PSAs generally vest after three years provided that certain annual performance targets and other vesting criteria are met. Until vested, RSUs and PSAs do not have the voting and dividend participation rights of common stock and the shares underlying the awards are not considered issued and outstanding.

The following table summarizes the Company’s RSU and PSA activity and related information as of and for the three months ended March 31, 2012 (in millions, except per share amounts and years):

 
Outstanding RSUs and PSAs
 
Number of Shares
 
Weighted Average Grant-Date Fair Value per Share
 
Weighted Average Remaining Contractual Term (In Years)
 
Aggregate Intrinsic Value
Balance at January 1, 2012
19.6

 
$
30.27

 
 
 
 
RSUs granted
6.5

 
22.04

 
 
 
 
RSUs assumed
0.2

 
22.47

 
 
 
 
PSAs granted (1)
2.2

 
23.22

 
 
 
 
RSUs vested
(1.6
)
 
27.55

 
 
 
 
PSAs vested
(1.4
)
 
15.63

 
 
 
 
RSUs canceled
(0.4
)
 
30.20

 
 
 
 
     PSAs canceled
(0.4
)
 
31.73

 
 
 
 
Balance at March 31, 2012
24.7

 
$
28.54

 
1.6

 
$
558.3

 
 
 
 
 
 
 
 
As of March 31, 2012:
 
 
 
 
 
 
 
Vested and expected-to-vest RSUs and PSAs
28.8

 
$
—

 
1.4

 
$
456.5

________________________________
(1)
The number of shares subject to PSAs granted represents the aggregate maximum number of shares that may be issued pursuant to the award over its full term. The aggregate number of shares subject to these PSAs that would be issued if performance goals determined by the Compensation Committee are achieved at target is 0.9 million shares. Depending on achievement of such performance goals, the range of shares that could be issued under these awards is 0 to 2.2 million shares.

Shares Available for Grant

The following table presents the stock grant activity and the total number of shares available for grant under the 2006 Plan as of March 31, 2012 (in millions):
 
Number of Shares
Balance at January 1, 2012
41.1

RSUs and PSAs granted (1)
(18.3
)
Options granted
(3.0
)
RSUs and PSAs canceled (1)
1.7

Options canceled (2)
0.5

Options expired (2)
0.2

Balance at March 31, 2012
22.2

________________________________
(1)
RSUs and PSAs with a per share or unit purchase price lower than 100% of the fair market value of the Company's common stock on the day of the grant under the 2006 Plan are counted against shares authorized under the plan as two and one-tenth shares of common stock for each share subject to such award. The number of shares subject to PSAs granted represents the maximum number of shares that may be issued pursuant to the award over its full term.
(2)
Includes canceled or expired options under the 1996 Plan and the 2000 Plan that expired unexercised after May 18, 2006, which become available for grant under the 2006 Plan according to its terms.

Employee Stock Purchase Plan

The Company's 2008 Purchase Plan is implemented in a series of offering periods, each six months in duration, or a shorter period as determined by the Board. Under the 2008 Purchase Plan, employees purchased approximately 1.7 million shares at an average per share price of $17.79 for the three months ended March 31, 2012, and 1.0 million shares at an average price of $23.89 for the three months ended March 31, 2011.

As of March 31, 2012, approximately 7.7 million shares had been issued and 4.3 million shares remained available for future issuance under the 2008 Purchase Plan.

Common Stock Reserved for Future Issuance

As of March 31, 2012, the Company had reserved an aggregate of approximately 93.0 million shares of common stock for future issuance under its equity incentive plans and the 2008 Purchase Plan.

Share-Based Compensation Expense

The Company determines the fair value of its stock options utilizing the Black-Scholes-Merton (“BSM”) option-pricing model, which incorporates various assumptions including volatility, risk-free interest rate, expected life, and dividend yield. The expected volatility is based on the implied volatility of market-traded options on the Company’s common stock, adjusted for other relevant factors including historical volatility of the Company’s common stock over the most recent period commensurate with the estimated expected life of the Company’s stock options. The expected life of a stock option award is based on historical experience and on the terms and conditions of the stock awards granted to employees, as well as the potential effect from stock options that had not been exercised at the time. The Company determines the fair value of its RSUs and PSAs based upon the fair market value of the shares of the Company’s common stock at the date of grant.

The weighted average assumptions used and the resulting estimates of fair value for employee stock options and the employee stock purchase plan during the three months ended March 31, 2012 and 2011 were:

 
Three Months Ended March 31,
 
2012
 
2011
Employee Stock Options:
 
 
 
Volatility factor
46%
 
41%
Risk-free interest rate
0.8%
 
1.7%
Expected life (years)
4.2
 
4.1
Dividend yield
—
 
—
Fair value per share
$8.51
 
$14.43
 
 
 
 
Employee Stock Purchase Plan:
 
 
 
Volatility factor
51%
 
33%
Risk-free interest rate
0.1%
 
1.8%
Expected life (years)
0.5
 
0.5
Dividend yield
—
 
—
Weighted-average fair value per share
$6.38
 
$9.07


The Company expenses the cost of its stock options on a straight-line basis over the vesting period and expenses the cost of its RSUs ratably over the vesting period. With respect to PSAs, for the portion of the award attributable to each performance year, the Company recognizes PSA expense ratably over the remaining vesting period starting in the period in which the annual performance targets are set for each such performance year.

The Company’s share-based compensation expense associated with stock options, employee stock purchases, RSUs, and PSAs is recorded in the following cost and expense categories for the three months ended March 31, 2012, and 2011 (in millions):

 
Three Months Ended
 
March 31,
 
2012
 
2011
Cost of revenues - Product
$
1.1

 
$
1.0

Cost of revenues - Service
5.2

 
3.9

Research and development
25.8

 
22.3

Sales and marketing
21.9

 
13.2

General and administrative
11.0

 
8.6

Total
$
65.0

 
$
49.0



The following table summarizes share-based compensation expense by award type (in millions):

 
Three Months Ended March 31,
 
2012
 
2011
Options
$
17.7

 
$
19.7

RSUs and PSAs
41.6

 
23.4

Assumed RSUs
0.2

 
—

Employee stock purchase plan
5.5

 
4.4

Other acquisition-related compensation
—

 
1.5

Total
$
65.0

 
$
49.0



As of March 31, 2012, approximately $98.4 million of unrecognized compensation cost, adjusted for estimated forfeitures, related to unvested stock options will be recognized over a weighted-average period of approximately 2.6 years while approximately $353.7 million of unrecognized compensation cost, adjusted for estimated forfeitures, related to unvested RSUs and PSAs will be recognized over a weighted-average period of approximately 2.4 years.

401(k) Plan

The Company maintains a savings and retirement plan qualified under Section 401(k) of the Internal Revenue Code of 1986, as amended. Employees meeting the eligibility requirements, as defined, may contribute up to the statutory limits of the year. The Company has matched employee contributions since January 1, 2001, currently matching 25% of all eligible employee contributions. All matching contributions vest immediately. The Company’s matching contributions to the plan totaled $6.6 million and $5.1 million in the three months ended March 31, 2012 and March 31, 2011, respectively.

Deferred Compensation Plan

The Company’s non-qualified deferred compensation (“NQDC”) plan is an unfunded and unsecured deferred compensation arrangement. Under the NQDC plan, officers and other senior employees may elect to defer a portion of their compensation and contribute such amounts to one or more investment funds. The NQDC plan assets are included within short-term investments, and offsetting obligations are included within accrued compensation on the condensed consolidated balance sheet. The investments are considered trading securities and are reported at fair value. The realized and unrealized holding gains and losses related to these investments are recorded in interest and other income, net, and the offsetting compensation expense are recorded as operating expenses in the condensed consolidated results of operations. The deferred compensation liability under the NQDC plan was approximately $11.9 million and $9.3 million as of March 31, 2012, and December 31, 2011, respectively. For additional information regarding the Company's NQDC, see Note 5, Cash, Cash Equivalents, and Investments.

Segments (Notes)
Segments [Text Block]
Segments

The Company’s chief operating decision maker (“CODM”) allocates resources and assesses performance based on financial information of the Company’s divisions. In fiscal 2012, the Company reorganized its operations into two reportable segments principally by product families: PSD and SSD. As a result of the change, product families and services were organized within the two divisions based on homogeneity of products and technology.

To provide improved visibility and comparability the Company has reclassified segment operating results for 2011 to conform with certain 2012 organizational realignments.

The Company’s PSD segment primarily offers scalable routing and switching products that are used in service provider, enterprise, and public sector networks to control and direct network traffic from data centers, core, edge, aggregation, campus, WANs, branch, and customer premise equipment level. The Company's PSD segment consists of routing, switching, and security/other products and services. Routing includes products and services from the E, M, MX, PTX and T Series. Switching primarily consists of products and services for EX Series and wireless local area network solutions, as well as QFabric™. Security/other includes products and services from the branch SRX, branch firewall, and J Series, as well as the network application platform, Junos® Space.

The Company's SSD segment offers solutions that meet a broad array of our customers’ priorities, from protecting the users, applications and data on the network to providing network services across a distributed infrastructure. The SSD segment primarily consists of security/other and routing products and services. Security/other includes High-End SRX services and vGW Virtual Gateways, High-End Firewall virtual private network systems and appliances, secure socket layer virtual private network appliances, intrusion detection and prevention appliances, wide area network optimization platforms, and Junos Pulse. Routing primarily consists of Routing Services Software and Mobile Applications (such as MobileNextTM).

The CODM does not allocate to its business segments certain operating expenses managed separately at the corporate level. Direct costs and operating expenses, such as standard COGS, R&D, and product marketing expenses, are generally applied to each segment. Indirect costs, such as manufacturing overhead and other cost of revenues, are allocated based on factors including headcount, usage, and revenue. Corporate unallocated charges includes: sales, marketing, and G&A costs, as well as share-based compensation, amortization of purchased intangible assets, restructuring and impairment charges, gains or losses on equity investments, other net income and expense, income taxes, or certain other charges. Segment contribution margin excludes these corporate unallocated charges.

The following table summarizes financial information for each segment used by the CODM for the three months ended March 31, 2012 and 2011 (in millions):
 
Three Months Ended
 
March 31,
 
2012
 
2011
Net revenues:
 
 
 
PSD
$
824.2

 
$
898.6

SSD
208.3

 
203.0

Total net revenues
1,032.5

 
1,101.6

 
 
 
 
Segment contribution margin:
 
 
 
PSD
304.7

 
417.1

SSD
81.9

 
81.1

Total segment contribution margin
386.6

 
498.2

 
 
 
 
Corporate unallocated expenses (1)
(263.1
)
 
(252.4
)
Amortization of purchased intangible assets (2)
(7.3
)
 
(6.7
)
Share-based compensation expense
(65.0
)
 
(49.0
)
Share-based payroll tax expense
(0.4
)
 
(8.0
)
Restructuring and other charges
(2.0
)
 
0.3

Acquisition-related and other charges (3)
(1.1
)
 
(5.1
)
Total operating income
47.7

 
177.4

Other expense, net
(24.4
)
 
(6.5
)
Income before income taxes and noncontrolling interest
$
23.3

 
$
170.9

________________________________
(1)
Amount includes unallocated costs for global functions such as sales, marketing, and G&A.
(2)
Amount includes amortization expense of purchased intangible assets in operating expenses and in cost of revenues.
(3)
Amount includes acquisition-related costs in operating expenses and in cost of revenues.

Depreciation expense allocated to the PSD segment was $28.2 million and $26.0 million in the three months ended March 31, 2012 and March 31, 2011, respectively. Depreciation expense allocated to the SSD segment was $7.9 million and $8.0 million in the three months ended March 31, 2012 and March 31, 2011, respectively.

The Company attributes revenues to geographic region based on the customer’s ship-to location. The following table shows net revenues by geographic region (in millions):

 
Three Months Ended
 
March 31,
 
2012
 
2011
Americas:
 
 
 
United States
$
468.4

 
$
526.0

Other
62.9

 
55.6

Total Americas
531.3

 
581.6

Europe, Middle East, and Africa
307.1

 
299.9

Asia Pacific
194.1

 
220.1

Total
$
1,032.5

 
$
1,101.6



During the three months ended March 31, 2012, Verizon Communications, Inc. accounted for 15.3% of net revenues. During the three months ended March 31, 2011, no single customer accounted for 10% or more of net revenues.

The Company tracks assets by physical location. The majority of the Company’s assets, excluding cash and cash equivalents and investments, as of March 31, 2012, and December 31, 2011, were attributable to U.S. operations. As of March 31, 2012, and December 31, 2011, gross property and equipment held in the U.S., as a percentage of total property and equipment, was approximately 80%. Although management reviews asset information on a corporate level and allocates depreciation expense by segment, the CODM does not review asset information on a segment basis.
Income Taxes (Notes)
Income Tax [Text Block]
Income Taxes

The Company recorded a tax provision of $7.0 million and $41.3 million, or effective tax rates of 30.1% and 24.1% for the three months ended March 31, 2012 and 2011, respectively.

The effective tax rates for the three months ended March 31, 2012, differ from the federal statutory rate of 35% primarily due to the benefit of earnings in foreign jurisdictions, which are subject to lower tax rates, partially offset by an increase in the Company's valuation allowance attributable to investment losses currently disallowed for income tax purposes. The effective rate for the period does not reflect the benefit of the federal R&D credit which expired on December 31, 2011.
 
The effective tax rate for the three months ended March 31, 2011, differs from the federal statutory rate of 35% primarily due to the federal R&D credit and the benefit of earnings in foreign jurisdictions, which are subject to lower tax rates.

The gross unrecognized tax benefits increased by approximately $2.9 million for the three months ended March 31, 2012. In the same period, a benefit primarily related to expiration of statutes of limitation in the amount of approximately $3.4 million, including interest and penalties, impacted the effective tax rate.

The Company is currently under examination by the Internal Revenue Service ("IRS") for the 2004 through 2009 tax years. The Company is also subject to two separate ongoing examinations by the India tax authorities for the 2004 tax year and 2004 through 2008 tax years, respectively. Additionally, the Company has not reached a final resolution with the IRS on an adjustment it proposed for the 1999 and 2000 tax years. The Company is not aware of any other examination by taxing authorities in any other major jurisdictions in which it files income tax returns as of March 31, 2012.
 
In 2011, as part of the 2005 and 2006 IRS audit, the Company received a proposed adjustment related to its intercompany R&D cost sharing arrangement for the license of intangibles acquired in 2005. In 2009, as part of the 2004 IRS audit, the Company received a similar proposed adjustment related to the license of intangibles acquired in 2004.

In 2008, the Company received a proposed adjustment from the India tax authorities related to the 2004 tax year. In 2009, the India tax authorities commenced a separate investigation of our 2004 through 2008 tax returns and are disputing the Company's determination of taxable income due to the cost basis of certain fixed assets. The Company accrued $4.6 million in penalties and interest in 2009 related to this matter. The Company understands that the India tax authorities may issue an initial assessment that is substantially higher than this amount. As a result, in accordance with the administrative and judicial process in India, the Company may be required to make payments that are substantially higher than the amount accrued in order to ultimately settle this issue. The Company strongly believes that any assessment it may receive in excess of the amount accrued would be inconsistent with applicable India tax laws and intends to defend this position vigorously.
 
The Company is pursuing all available administrative procedures relative to the matters referenced above. The Company believes that it has adequately provided for any reasonably foreseeable outcomes related to these proposed adjustments and the ultimate resolution of these matters is unlikely to have a material effect on its consolidated financial condition or results of operations; however there is still a possibility that an adverse outcome of these matters could have a material effect on its consolidated financial condition and results of operations. For more information, please see Note 15, Commitments and Contingencies, under the heading “IRS Notices of Proposed Adjustments.”

The Company engages in continuous discussions and negotiations with tax authorities regarding tax matters in various jurisdictions. It is reasonably possible that the balance of the gross unrecognized tax benefits will decrease by approximately $2.7 million within the next twelve months due to lapses of applicable statutes of limitation in multiple jurisdictions that the Company operated in. However, at this time, the Company is unable to make a reasonably reliable estimate of the timing of payments related to the remaining unrecognized tax liabilities due to uncertainties in the timing of tax audit outcomes.
Commitments and Contingencies (Notes)
Commitments and Contingencies [Text Block]
Commitments and Contingencies

Commitments

The following table summarizes the Company’s future principal contractual obligations as of March 31, 2012 (in millions):
 
Total
 
2012
 
2013
 
2014
 
2015
 
2016
 
Thereafter
 
Other
Operating leases
$
293.3

 
$
42.9

 
$
47.0

 
$
41.3

 
$
34.8

 
$
26.9

 
$
100.4

 
$
—

Purchase commitments
136.4

 
136.4

 
—

 
—

 
—

 
—

 
—

 
—

Tax liabilities
111.4

 
—

 
—

 
—

 
—

 
—

 
—

 
111.4

Long-term debt
1,000.0

 
—

 
—

 
—

 
—

 
300.0

 
700.0

 
—

Interest payment on long-term debt
849.7

 
23.5

 
46.9

 
46.9

 
46.9

 
41.9

 
643.6

 
—

Other contractual obligations
90.8

 
81.0

 
4.8

 
3.0

 
2.0

 
—

 
—

 
—

Total
$
2,481.6

 
$
283.8

 
$
98.7

 
$
91.2

 
$
83.7

 
$
368.8

 
$
1,444.0

 
$
111.4



Operating Leases

The Company leases its facilities under operating leases that expire at various times, the longest of which expires on November 30, 2022. Future minimum payments under the non-cancelable operating leases totaled $293.3 million as of March 31, 2012. Rent expense was $15.7 million and $14.8 million for the three months ended March 31, 2012 and March 31, 2011, respectively.

Purchase Commitments

In order to reduce manufacturing lead times and ensure adequate component supply, contract manufacturers utilized by the Company place non-cancelable, non-returnable (“NCNR”) orders for components based on the Company’s build forecasts. As of March 31, 2012, there were NCNR component orders placed by the contract manufacturers with a value of $136.4 million. The contract manufacturers use the components to build products based on the Company’s forecasts and customer purchase orders received by the Company. Generally, the Company does not own the components and title to the products transfers from the contract manufacturers to the Company and immediately to the Company’s customers upon delivery at a designated shipment location. If the components remain unused or the products remain unsold for specified periods, the Company may incur carrying charges or obsolete materials charges for components that the contract manufacturers purchased to build products to meet the Company’s forecast or customer orders. As of March 31, 2012, the Company had accrued $15.6 million based on its estimate of such charges.

Tax Liabilities

As of March 31, 2012, the Company had $111.4 million included in long-term liabilities in the condensed consolidated balance sheet for unrecognized tax positions. At this time, the Company is unable to make a reasonably reliable estimate of the timing of payments related to the additional $111.4 million in liability due to uncertainties in the timing of tax audit outcomes.

Long-Term Debt and Interest Payment on Long-Term Debt

As of March 31, 2012, the Company held long-term debt with a carrying value of $999.1 million. Of these notes, $300.0 million will mature in 2016 and bears interest at a fixed rate of 3.10%, $300.0 million will mature in 2021 and bears interest at a fixed rate of 4.60%, and $400.0 million will mature in 2041 and bears interest at 5.95%. Interest on the notes is payable semiannually. See Note 10, Long-Term Debt and Financing, for further discussion of the Company's long-term debt.

Other Contractual Obligations

As of March 31, 2012, other contractual obligations primarily consisted of $29.2 million in indemnity-related and service related escrows, required by certain acquisitions completed in 2005 and 2010, $47.6 million in campus build-out obligations, and other miscellaneous commitments.

Guarantees

The Company enters into agreements with customers that contain indemnification provisions relating to potential situations where claims could be alleged that the Company’s products infringe the intellectual property rights of a third-party. The Company also has financial guarantees consisting of guarantees of product and service performance, guarantees related to third-party customer-financing arrangements, customs and duties guarantees, and standby letters of credit for certain lease facilities. As of March 31, 2012, and December 31, 2011, the Company had $19.3 million and $19.9 million, respectively, in bank guarantees and standby letters of credit related to these financial guarantees.

Legal Proceedings

The Company is involved in disputes, litigation, and other legal actions, including, but not limited to, the matters described below. The Company is aggressively defending its current litigation matters, and while the Company currently believes that there are no existing claims or proceedings that are likely to have a material adverse effect on its financial position, the outcome of these matters is currently not determinable. There are many uncertainties associated with any litigation, and these actions or other third-party claims against the Company may cause the Company to incur costly litigation and/or substantial settlement charges. In addition, the resolution of any intellectual property litigation may require the Company to make royalty payments, which could adversely affect gross margins in future periods. If any of those events were to occur, the Company's business, financial condition, results of operations, and cash flows could be adversely affected. The actual liability in any such matters may be materially different from the Company's estimates, which could result in the need to adjust the liability and record additional expenses.

2011 Federal Securities Class Action

On August 15, 2011, a purported securities class action lawsuit, captioned City of Royal Oak Retirement System v. Juniper Networks, Inc., et al., Case No. 11-cv-04003-LHK, was filed in the United States District Court for the Northern District of California naming the Company and certain of its officers and directors as defendants. The complaint alleges that the defendants made false and misleading statements regarding the Company's business and prospects. On January 9, 2012 the Court appointed City of Omaha Police and Fire Retirement System and City of Bristol Pension Fund as lead plaintiff. Lead plaintiff filed an amended complaint on February 13, 2012. The amended complaint alleges that defendants made false and misleading statements about Juniper's business and future prospects, and failed to adequately disclose the impact of certain changes in accounting rules. The amended complaint purports to assert claims for violations of Sections 10(b), 20(a) and 20A of the Securities Exchange Act of 1934 and SEC Rule 10b-5 on behalf of those who purchased or otherwise acquired Juniper's common stock between July 20, 2010 and July 26, 2011, inclusive. On March 14, 2012, Defendants filed motions to dismiss. Plaintiffs filed their opposition to the motions on April 13, 2012. The motions are scheduled to be heard by the Court on July 19, 2012.

2011 California State Derivative Lawsuits

Between August 22 and September 9, 2011, four purported shareholder derivative actions were filed in the Superior Court of the State of California, County of Santa Clara, naming certain of the Company's officers and directors as defendants. The Company is named only as a nominal defendant in the actions. The actions were consolidated as In re Juniper Networks, Inc. Shareholder Litigation, Case No. 1-11-CV-207701 (Lead Case), by order dated September 12, 2011. The complaints are generally based upon the disclosures and alleged omissions challenged in the securities class action. The complaints purport to assert claims against the defendants for breach of fiduciary duties, unjust enrichment, abuse of control, gross mismanagement, and waste of corporate assets. The complaints seek, among other relief, damages in an unspecified amount, restitution, and attorneys' fees and costs. On March 8, 2012, the Company filed a motion to stay the action until resolution of the federal securities class action discussed above, and also filed a demurrer seeking to dismiss the action for the reason that plaintiffs lack standing. The plaintiffs filed oppositions to both motions on April 5, 2012. The motions are scheduled to be heard by the Court on July 27, 2012.

2011 Federal Derivative Lawsuit
On September 27, 2011 and December 28, 2011, two purported shareholder derivative actions, captioned Ratinova v. Johnson, et al., Case No. 11-cv-04792 and Lisa E. Coppola, ERA v. Johnson, et al., Case No. 11-cv-06667, respectively, were filed in the United States District Court for the Northern District of California naming certain of the Company's officers and directors as defendants. The Company is named only as a nominal defendant in the action. Like the state derivative actions, the federal derivative lawsuits are generally based upon the disclosures and alleged omissions challenged in the securities class action. The complaints purport to assert claims against the defendants for breach of fiduciary duties and unjust enrichment. The complaints seek, among other relief, damages in an unspecified amount, restitution, and attorneys' fees and costs. By order dated January 30, 2012, the Court consolidated the actions as In re Juniper Networks, Inc. Shareholder Derivative Litigation, Master File No. 11-cv-04792-LHK. On February 3, 2012, the parties filed a stipulation in which the parties requested that the Court stay the action until such time as the Court entered an order denying a motion to dismiss in the related federal securities class action described above. On February 6, 2012, the Court granted the parties' stipulation.

IRS Notices of Proposed Adjustments

In 2011, as a result of its audit of the Company's U.S. federal income tax returns for the 2005 and 2006 fiscal years, the IRS issued a Preliminary Notice of Deficiency (“PNOD”) regarding the Company's transfer pricing transactions under its intercompany R&D cost sharing arrangement related to the license of intangibles acquired in 2005. The asserted changes would affect the Company's income tax liabilities for tax years subsequent to 2004. Because of the PNOD, the estimated incremental tax liabilities for all relative tax years would be approximately $92 million, excluding interest and penalties. The Company has filed a protest to the proposed deficiency with the IRS.

In 2009, the Company received a PNOD from the IRS claiming that the Company owes additional taxes, plus interest and possible penalties, for the 2004 tax year based on a transfer pricing transaction related to the license of acquired intangibles under an intercompany R&D cost sharing arrangement. The asserted changes to the Company's 2004 tax year would affect the Company's income tax liabilities in tax years subsequent to 2003. In addition, the Company has not reached a final resolution with the IRS on an adjustment the IRS proposed for the 1999 and 2000 tax years. Because of the PNOD, the estimated incremental tax liability would be approximately $807 million, excluding interest and penalties. The Company has filed a protest to the PNOD, which is under review by the Appeals Division of the IRS.

The Company strongly believes the IRS' position with regard to transfer pricing transactions for the Company's 2004 through 2006 fiscal years are inconsistent with applicable tax laws, judicial precedent and existing Treasury regulations, and that the Company's previously reported income tax provisions for the years in question are appropriate. However, there can be no assurance that these matters will be resolved in the Company's favor. Regardless of whether these matters are resolved in the Company's favor, the final resolution of these matters could be expensive and time-consuming to defend and/or settle. While the Company believes it has provided adequately for these matters, there is still a possibility that an adverse outcome from these matters could have a material effect on its results of operations and financial condition.
 
In September 2008, as part of its ongoing audit of the U.S. federal income tax return for the 2004 fiscal year, the IRS issued a Notice of Proposed Adjustment (“NOPA”) regarding the Company's business credits. The Company believes that it has adequately provided for any reasonable foreseeable outcome related to this proposed adjustment.

The Company is also under routine examination by certain state and non-U.S. tax authorities. The Company believes that it has adequately provided for any reasonably foreseeable outcome related to these audits.
Subsequent Events
Subsequent Events [Text Block]
Subsequent Event

Stock Repurchases
 
Subsequent to March 31, 2012, through the filing of this report, the Company repurchased 2.2 million shares of its common stock, for $44.0 million at an average purchase price of $20.09 per share, under its 2010 Stock Repurchase Program. Repurchases of 2.0 million shares were settled prior to the filing of this report and the remaining shares will be settled after the filing date. The Company's 2010 Stock Repurchase Program had remaining authorized funds of $122.2 million as of the filing date. Purchases under the Company's 2010 Stock Repurchase Program are subject to a review of the circumstances in place at the time and will be made from time to time as permitted by securities laws and other legal requirements. This program may be discontinued at any time.
Summary of Significant Accounting Policies (Policies)
Recent Accounting Pronouncements
Recent Accounting Pronouncements

In September 2011, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2011-08, Topic 350 - Intangibles - Goodwill and Other ("ASU 2011-08"), which amends Topic 350 and provides entities an option to perform a qualitative assessment to determine whether further impairment testing on goodwill is necessary. Specifically, an entity has the option to first assess qualitative factors to determine whether it is necessary to perform the current two-step test. If an entity believes, as a result of its qualitative assessment, that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, the quantitative impairment test is required. Otherwise, no further testing is required. The Company adopted this standard in the first quarter of 2012. The Company’s adoption of the standard during the first quarter of 2012 did not impact its consolidated results of operations or financial condition.

In June 2011, the FASB issued ASU No. 2011-05, Topic 220 - Presentation of Comprehensive Income (“ASU 2011-05”), which requires companies to present net income and other comprehensive income in one continuous statement or in two separate, but consecutive, statements. In addition, in December 2011, the FASB issued Accounting Standards Update ("ASU") No. 2011-12, Topic 220 - Comprehensive Income ("ASU 2011-12"), which defers the requirement to present components of reclassifications of other comprehensive income on the face of the income statement. The Company adopted both standards in the first quarter of 2012. The Company’s adoption of the standard during the first quarter of 2012 did not impact its consolidated results of operations or financial condition.

In May 2011, the FASB issued ASU No. 2011-04, Topic 820 - Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs (“ASU 2011-04”), which amends the fair value measurement guidance and includes some enhanced disclosure requirements. The most significant change in disclosures is an expansion of the information required for Level 3 measurements based on unobservable inputs. The Company adopted this standard in the first quarter of 2012. The Company’s adoption of the standard during the first quarter of 2012 did not impact its consolidated results of operations or financial condition.
Business Combination (Tables)
Schedule of Purchase Price Allocation [Table Text Block] 
The following table presents the preliminary purchase consideration allocations for these acquisitions, including cash and cash equivalents acquired (in millions):
 
 
Q1'12 Acquisitions
 
Mykonos
 
BitGravity
 
Total
Net tangible assets/(liabilities) acquired
$
(0.8
)
 
$
0.1

 
$
(0.7
)
Intangible assets acquired
24.3

 
12.4

 
36.7

Goodwill
59.1

 
0.5

 
59.6

    Total
$
82.6

 
$
13.0

 
$
95.6



Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] 
The following table presents details of the intangible assets acquired through the business combinations completed during the first quarter of 2012 (in millions, except years):
 
 
Q1'12 Acquisitions
 
Mykonos
 
BitGravity
 
Estimated Useful Life (In Years)
Amount
 
Estimated Useful Life (In Years)
Amount
Existing technology
6
$
19.3

 
3
$
12.4

Trade name and trademarks
7
1.0

 
—
—

In-process research and development
—
4.0

 
—
—

Total
 
$
24.3

 
 
$
12.4

Net Income per Share (Tables)
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]
The Company computed basic and diluted net income per share attributable to Juniper Networks common stockholders as follows (in millions, except per share amounts):

 
Three Months Ended March 31,
 
2012
 
2011
Numerator:
 
 
 
Net income attributable to Juniper Networks
$
16.3

 
$
129.8

Denominator:
 
 
 
Weighted-average shares used to compute basic net income per share
527.2

 
530.8

Dilutive effect of employee stock awards
6.5

 
18.0

Weighted-average shares used to compute diluted net income per share
533.7

 
548.8

Net income per share attributable to Juniper Networks common stockholders:
 
 
 
Basic
$
0.03

 
$
0.24

Diluted
$
0.03

 
$
0.24

Cash, Cash Equivalents and Investments (Tables)
Cash and cash equivalents [Table Text Block] 
The following table summarizes the Company's cash and cash equivalents (in millions):

 
As of
 
March 31,
2012
 
December 31,
2011
Cash:
 
 
 
Demand deposits
$
680.6

 
$
633.7

Time deposits
885.9

 
926.0

Total cash
1,566.5

 
1,559.7

Cash equivalents:
 
 
 
U.S. government securities
102.0

 
—

Government-sponsored enterprise obligations
—

 
24.5

Commercial paper
15.0

 
10.0

Money market funds
1,229.6

 
1,316.2

Total cash equivalents
1,346.6

 
1,350.7

Total cash and cash equivalents
$
2,913.1

 
$
2,910.4

Unrealized gains and losses, and fair value of available-for-sale and trading securities [Text Block] 
The following table summarizes the Company's unrealized gains and losses, based on the specific identification method, and fair value of investments designated as available-for-sale and trading securities, as of March 31, 2012, and December 31, 2011 (in millions):
 
Amortized Cost
 
Gross Unrealized Gains
 
Gross Unrealized Losses
 
Estimated Fair Value
As of March 31, 2012:
 
 
 
 
 
 
 
Fixed income securities:
 
 
 
 
 
 
 
U.S. government securities
$
376.9

 
$
—

 
$
(0.2
)
 
$
376.7

Government-sponsored enterprise obligations
275.7

 
0.5

 
—

 
276.2

Certificates of deposit
25.6

 
—

 
—

 
25.6

Commercial paper
15.0

 
—

 
—

 
15.0

Asset-backed securities
141.8

 
0.2

 
—

 
142.0

Corporate debt securities
566.9

 
1.7

 
(0.2
)
 
568.4

Money market funds
1,229.6

 
—

 
—

 
1,229.6

Total fixed income securities
2,631.5

 
2.4

 
(0.4
)
 
2,633.5

Publicly-traded equity securities
2.6

 
1.3

 
—

 
3.9

Total available-for-sale securities
2,634.1

 
3.7

 
(0.4
)
 
2,637.4

Trading securities (1)
11.9

 
—

 
—

 
11.9

Total
$
2,646.0

 
$
3.7

 
$
(0.4
)
 
$
2,649.3

 
 
 
 
 
 
 
 
Reported as:
 
 
 
 
 
 
 
Cash equivalents
$
1,346.6

 
$
—

 
$
—

 
$
1,346.6

Short-term investments
515.8

 
1.6

 
—

 
517.4

Long-term investments
783.6

 
2.1

 
(0.4
)
 
785.3

Total
$
2,646.0

 
$
3.7

 
$
(0.4
)
 
$
2,649.3

________________________________
(1)
Balance includes the Company's non-qualified deferred compensation plan assets. For additional information, see Note 12, Employee Benefit Plans, under the section Deferred Compensation Plan.

 
Amortized Cost
 
Gross Unrealized Gains
 
Gross Unrealized Losses
 
Estimated Fair Value
As of December 31, 2011:
 
 
 
 
 
 
 
Fixed income securities:
 
 
 
 
 
 
 
U.S. government securities
$
301.1

 
$
—

 
$
(0.1
)
 
$
301.0

Government-sponsored enterprise obligations
430.8

 
0.3

 
(0.1
)
 
431.0

Certificates of deposit
31.8

 
—

 
—

 
31.8

Commercial paper
10.0

 
—

 
—

 
10.0

Asset-backed securities
124.7

 
0.1

 
(0.1
)
 
124.7

Corporate debt securities
508.2

 
1.0

 
(0.5
)
 
508.7

Money market funds
1,316.2

 
—

 
—

 
1,316.2

Total fixed income securities
2,722.8

 
1.4

 
(0.8
)
 
2,723.4

Total available-for-sale securities
2,722.8

 
1.4

 
(0.8
)
 
2,723.4

Trading securities (1)
9.3

 
—

 
—

 
9.3

Total
$
2,732.1

 
$
1.4

 
$
(0.8
)
 
$
2,732.7

 
 
 
 
 
 
 
 
Reported as:
 
 
 
 
 
 
 
Cash equivalents
$
1,350.7

 
$
—

 
$
—

 
$
1,350.7

Short-term investments
640.9

 
0.4

 
—

 
641.3

Long-term investments
740.5

 
1.0

 
(0.8
)
 
740.7

Total
$
2,732.1

 
$
1.4

 
$
(0.8
)
 
$
2,732.7


 
________________________________
(1)
Balance includes the Company's non-qualified deferred compensation plan assets. For additional information, see Note 12, Employee Benefit Plans, under the section Deferred Compensation Plan.

Maturities of available-for-sale investments and publicly-traded securities [Text Block] 
The following table presents the maturities of the Company's available-for-sale and trading securities, as of March 31, 2012 (in millions):

 
Amortized Cost
 
Gross Unrealized Gains
 
Gross Unrealized Losses
 
Estimated Fair Value
Due within one year
$
1,847.9

 
$
0.3

 
$
—

 
$
1,848.2

Due between one and five years
783.6

 
2.1

 
(0.4
)
 
785.3

No contractual maturity
14.5

 
1.3

 
—

 
15.8

Total
$
2,646.0

 
$
3.7

 
$
(0.4
)
 
$
2,649.3

Trading and available-for-sale investments in an unrealized loss position [Text Block] 
The following tables present the Company's available-for-sale investments that are in an unrealized loss position as of March 31, 2012, and December 31, 2011 (in millions):

 
Less than 12 Months
 
12 Months or Greater
 
Total
 
Fair Value
 
Unrealized Loss
 
Fair Value
 
Unrealized Loss
 
Fair Value
 
Unrealized Loss
As of March 31, 2012
 
 
 
 
 
 
 
 
 
 
 
Corporate debt securities
$
117.8

 
$
(0.2
)
 
$
—

 
$
—

 
$
117.8

 
$
(0.2
)
U.S. government securities
207.2

 
(0.2
)
 
—

 
—

 
207.2

 
(0.2
)
Government-sponsored enterprise obligations (1)
34.5

 
—

 
—

 
—

 
34.5

 
—

Asset-backed securities (1)
23.5

 
—

 
0.4

 
—

 
23.9

 
—

Total
$
383.0

 
$
(0.4
)
 
$
0.4

 
$
—

 
$
383.4

 
$
(0.4
)
________________________________
(1)
Balance includes investments that were in an immaterial unrealized loss position as of March 31, 2012.
 
Less than 12 Months 
 
12 Months or Greater 
 
Total 
 
Fair Value 
 
Unrealized Loss 
 
Fair Value 
 
Unrealized Loss 
 
Fair Value 
 
Unrealized Loss 
As of December 31, 2011
 
 
 
 
 
 
 
 
 
 
 
Corporate debt securities
$
189.9

 
$
(0.5
)
 
$
—

 
$
—

 
$
189.9

 
$
(0.5
)
U.S. government securities
186.7

 
(0.1
)
 
—

 
—

 
186.7

 
(0.1
)
Government-sponsored enterprise obligations
146.0

 
(0.1
)
 
—

 
—

 
146.0

 
(0.1
)
Asset-backed securities (1)
76.8

 
(0.1
)
 
0.3

 
—

 
77.1

 
(0.1
)
Total
$
599.4

 
$
(0.8
)
 
$
0.3

 
$
—

 
$
599.7

 
$
(0.8
)
 ________________________________
(1)
Balance includes investments that were in an immaterial unrealized loss position as of December 31, 2011.
Restricted cash and investments [Text Block] 
The following table summarizes the Company's cash and investments that are classified as restricted cash and investments in the condensed consolidated balance sheets (in millions):
 
As of
 
March 31,
2012
 
December 31,
2011
Restricted cash:
 
 
 
Demand deposits
$
0.6

 
$
0.6

Total restricted cash
0.6

 
0.6

Restricted investments:
 
 
 
Corporate debt securities
1.7

 
1.6

Mutual funds
1.0

 
1.0

Money market funds
79.2

 
75.1

Total restricted investments
81.9

 
77.7

Total restricted cash and investments
$
82.5

 
$
78.3

Fair Value Measurements (Tables)
3 Months Ended 12 Months Ended
Mar. 31, 2012
Dec. 31, 2011
Assets measured at fair value on a recurring basis [Text Block] 
The following tables provide a summary of assets and liabilities measured at fair value on a recurring basis and as reported in the condensed consolidated balance sheets (in millions):
 
Fair Value Measurements at March 31, 2012 Using:
 
 
 
Quoted Prices in Active Markets For Identical Assets
 
Significant Other Observable Remaining Inputs
 
Significant Other Unobservable Remaining Inputs
 
 
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
Total
Available-for-sale debt securities:
 
 
 
 
 
 
 
U.S. government securities
$
187.0

 
$
189.7

 
$
—

 
$
376.7

Government-sponsored enterprise obligations
252.2

 
24.0

 
—

 
276.2

Commercial paper
—

 
15.0

 
—

 
15.0

Corporate debt securities (1)
—

 
570.1

 
—

 
570.1

Certificate of deposit
—

 
25.6

 
—

 
25.6

Asset-backed securities
—

 
142.0

 
—

 
142.0

Mutual funds (2)
1.0

 
—

 
—

 
1.0

Money market funds (3)
1,308.8

 
—

 
—

 
1,308.8

Total available-for-sale debt securities
1,749.0

 
966.4

 
—

 
2,715.4

Available-for-sale equity securities:
 
 
 
 
 
 
 
Publicly-traded equity securities
3.9

 
—

 
—

 
3.9

Total available-for-sale securities
1,752.9

 
966.4

 
—

 
2,719.3

Trading securities:
 
 
 
 
 
 
 
Mutual funds (4)
11.9

 
—

 
—

 
11.9

Total trading securities
11.9

 
—

 
—

 
11.9

Derivative assets:
 
 
 
 
 
 
 
Foreign exchange contracts
—

 
2.4

 
—

 
2.4

Total derivative assets
—

 
2.4

 
—

 
2.4

Total assets measured at fair value
$
1,764.8

 
$
968.8

 
$
—

 
$
2,733.6

 
 
 
 
 
 
 
 
Liabilities measured at fair value:
 
 
 
 
 
 
 
Derivative liabilities:
 
 
 
 
 
 
 
Foreign exchange contracts
$
—

 
$
3.1

 
$
—

 
$
3.1

Total derivative liabilities
—

 
3.1

 
—

 
3.1

Total liabilities measured at fair value
$
—

 
$
3.1

 
$
—

 
$
3.1

________________________________
(1)
Balance includes $1.7 million of restricted investments measured at fair market value, related to the Company's India Gratuity Trust.
(2)
Balance relates to the restricted investments measured at fair market value of the Company's India Gratuity Trust.
(3)
Balance includes $79.2 million of restricted investments measured at fair market value, related to the Company's D&O trust and acquisitions related escrows.
(4)
Balance relates to investments measured at fair value related to the Company's non-qualified deferred compensation plan assets.

Assets measured at fair value on a recurring basis [Text Block] 
 
Fair Value Measurements at December 31, 2011 Using:
 
 
 
Quoted Prices in Active Markets For Identical Assets
 
Significant Other Observable Remaining Inputs
 
Significant Other Unobservable Remaining Inputs
 
 
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
Total
Assets measured at fair value:
 
 
 
 
 
 
 
Available-for-sale debt securities:
 
 
 
 
 
 
 
U.S. government securities
$
149.3

 
$
151.7

 
$
—

 
$
301.0

Government-sponsored enterprise obligations
314.2

 
116.8

 
—

 
431.0

Commercial paper
—

 
10.0

 
—

 
10.0

Corporate debt securities (1)
—

 
510.3

 
—

 
510.3

Certificate of deposit
—

 
31.8

 
—

 
31.8

Asset-backed securities
—

 
124.7

 
—

 
124.7

Money market funds (2)
1,391.3

 
—

 
—

 
1,391.3

Total available-for-sale debt securities
1,854.8

 
945.3

 
—

 
2,800.1

Total available-for-sale securities
1,854.8

 
945.3

 
—

 
2,800.1

Trading securities:
 
 
 
 
 
 
 
Mutual funds (3)
10.3

 
—

 
—

 
10.3

Total trading securities
10.3

 
—

 
—

 
10.3

Derivative assets:
 
 
 
 
 
 
 
Foreign exchange contracts
—

 
0.4

 
—

 
0.4

Total derivative assets
—

 
0.4

 
—

 
0.4

Total assets measured at fair value
$
1,865.1

 
$
945.7

 
$
—

 
$
2,810.8

 
 
 
 
 
 
 
 
Liabilities measured at fair value:
 
 
 
 
 
 
 
Derivative liabilities:
 
 
 
 
 
 
 
Foreign exchange contracts
$
—

 
$
9.6

 
$
—

 
$
9.6

Total derivative liabilities
—

 
9.6

 
—

 
9.6

Total liabilities measured at fair value
$
—

 
$
9.6

 
$
—

 
$
9.6


________________________________
(1)
Balance includes $1.6 million of restricted investments measured at fair market value, related to the Company's India Gratuity Trust.
(2)
Balance includes $75.1 million of restricted investments measured at fair market value, related to the Company's D&O trust and acquisition related escrows.
(3)
Balance includes $9.3 million of the Company's non-qualified deferred compensation plan assets and $1.0 million of restricted investments measured at fair market value, related to the Company's India Gratuity Trust.

Fair value by balance sheet grouping [Text Block] 
 
Fair Value Measurements at March 31, 2012 Using:
 
 
 
Quoted Prices in Active Markets For Identical Assets
 
Significant Other Observable Remaining Inputs
 
Significant Other Unobservable Remaining Inputs
 
 
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
Total
Reported as:
 
 
 
 
 
 
 
Cash equivalents
$
1,229.6

 
$
117.0

 
$
—

 
$
1,346.6

Short-term investments
185.5

 
331.9

 
—

 
517.4

Long-term investments
269.5

 
515.8

 
—

 
785.3

Restricted investments
80.2

 
1.7

 
—

 
81.9

Prepaid expenses and other current assets
—

 
2.4

 
—

 
2.4

Total assets measured at fair value
$
1,764.8

 
$
968.8

 
$
—

 
$
2,733.6

 
 
 
 
 
 
 
 
Total liabilities measured at fair value, reported as:
 
 
 
 
 
 
 
Other accrued liabilities
$
—

 
$
3.1

 
$
—

 
$
3.1

Total liabilities measured at fair value
$
—

 
$
3.1

 
$
—

 
$
3.1

Fair value by balance sheet grouping [Text Block] 
 
Fair Value Measurements at December 31, 2011 Using:
 
 
 
Quoted Prices in Active Markets For Identical Assets
 
Significant Other Observable Remaining Inputs
 
Significant Other Unobservable Remaining Inputs
 
 
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
Total
Total assets measured at fair value, reported as:
 
 
 
 
 
 
 
Cash equivalents
$
1,316.2

 
$
34.5

 
$
—

 
$
1,350.7

Short-term investments
168.9

 
472.4

 
—

 
641.3

Long-term investments
303.9

 
436.8

 
—

 
740.7

Restricted investments
76.1

 
1.6

 
—

 
77.7

Prepaid expenses and other current assets
—

 
0.4

 
—

 
0.4

Total assets measured at fair value
$
1,865.1

 
$
945.7

 
$
—

 
$
2,810.8

Total liabilities measured at fair value, reported as:
 
 
 
 
 
 
 
Other accrued liabilities
$
—

 
$
9.6

 
$
—

 
$
9.6

Total liabilities measured at fair value
$
—

 
$
9.6

 
$
—

 
$
9.6

Derivative Instruments (Tables)
Schedule of Derivative Instruments [Table Text Block]
The notional amount of Company's foreign currency derivatives are summarized as follows (in millions):
 
As of
 
March 31,
2012
 
December 31,
2011
Cash flow hedges
$
122.4

 
$
184.3

Non-designated hedges
122.9

 
122.7

     Total
$
245.3

 
$
307.0

Goodwill and Purchased Intangible Assets (Tables)
Schedule of finite lived and indefinite lived intangible assets by major class [Text Block] 
Changes to the Company’s purchased intangible assets were as follows (in millions):

 
Gross
 
Accumulated Amortization
 
Net
As of March 31, 2012:
 
 
 
 
 
Intangible assets with finite lives:
 
 
 
 
 
Technologies and patents
$
531.2

 
$
(410.5
)
 
$
120.7

Other
92.5

 
(67.5
)
 
25.0

Total intangible assets with finite lives
623.7

 
(478.0
)
 
145.7

IPR&D with indefinite lives
6.8

 
—

 
6.8

Total purchased intangible assets
$
630.5

 
$
(478.0
)
 
$
152.5

 
 
 
 
 
 
As of December 31, 2011:
 
 
 
 
 
Intangible assets with finite lives:
 
 
 
 
 
Technologies and patents
$
499.5

 
$
(404.2
)
 
$
95.3

Other
91.5

 
(66.5
)
 
25.0

Total intangible assets with finite lives
591.0

 
(470.7
)
 
120.3

IPR&D with indefinite lives
2.8

 
—

 
2.8

Total purchased intangible assets
$
593.8

 
$
(470.7
)
 
$
123.1

Schedule of Goodwill [Table Text Block] 
The following table presents the goodwill allocated to the Company's reportable segments as of and during the three months ended March 31, 2012 (in millions):

 
PSD
 
SSD
 
Total
Balance as of January 1, 2012
$
1,795.6

 
$
2,132.5

 
$
3,928.1

Additions due to business combinations
—

 
59.6

 
59.6

Balance as of March 31, 2012
1,795.6

 
2,192.1

 
3,987.7

Estimated future amortization expense of purchased intangible assets with definite lives [Text Block] 
The estimated future amortization expense of purchased intangible assets with finite lives is as follows (in millions):

Years Ending December 31,
 
Amount
2012 (remaining nine months)
 
$
26.2

2013
 
34.7

2014
 
32.8

2015
 
24.8

2016
 
11.1

Thereafter
 
16.1

Total
 
$
145.7

Other Financial Information (Tables)
Schedule of Inventory, Current [Table Text Block] 
Inventories, net are reported within prepaid expenses and other current assets on the condensed consolidated balance sheet, and consist of the following (in millions):
 
As of
 
March 31, 2012
 
December 31, 2011
Inventories, net
 
 
 
Production materials
$
77.3

 
$
52.4

Finished goods
14.7

 
16.7

Total inventories, net
$
92.0

 
$
69.1

Warranties [Table Text Block] 
Changes in the Company’s warranty reserve were as follows (in millions):

 
Three Months Ended
 
March 31,
 
2012
 
2011
Beginning balance
$
28.3

 
$
35.9

Provisions made during the period, net
8.9

 
15.3

Change in estimate
—

 
(0.8
)
Actual costs incurred during the period
(7.9
)
 
(12.1
)
Ending balance
$
29.3

 
$
38.3

Deferred revenue [Table Text Block] 
Details of the Company's deferred revenue, as reported on the condensed consolidated balance sheets, were as follows (in millions):
 
As of
 
March 31,
2012
 
December 31,
2011
Deferred product revenue:
 
 
 
Undelivered product commitments and other product deferrals
$
286.4

 
$
288.1

Distributor inventory and other sell-through items
114.0

 
134.0

Deferred gross product revenue
400.4

 
422.1

Deferred cost of product revenue
(118.4
)
 
(136.9
)
Deferred product revenue, net
282.0

 
285.2

Deferred service revenue
717.6

 
681.8

Total
$
999.6

 
$
967.0

Reported as:
 
 
 
Current
$
760.6

 
$
712.6

Long-term
239.0

 
254.4

Total
$
999.6

 
$
967.0

Changes in restructuring liability [Table Text Block] 
The following table provides a summary of changes in the Company’s restructuring liability (in millions):

 
Remaining Liability as of
December 31, 2011
 
Charges
 
Cash payments
 
Non-cash Settlements and Other Adjustments
 
Remaining Liability as of
March 31, 2012
Facilities
$
1.0

 
$
(0.2
)
 
$
(0.2
)
 
$
—

 
$
0.6

Severance, contractual commitments, and other charges
3.1

 
2.2

 
(1.7
)
 
0.9

 
4.5

Total
$
4.1

 
$
2.0

 
$
(1.9
)
 
$
0.9

 
$
5.1

Interest and other income, net [Table Text Block] 
Other expense and income, net consists of the following (in millions):

 
Three Months Ended
 
March 31,
 
2012
 
2011
Interest income
$
2.8

 
$
2.4

Interest expense
(14.2
)
 
(6.5
)
Other
(13.0
)
 
(2.4
)
Other (expense) income, net
$
(24.4
)
 
$
(6.5
)
Long-Term Debt and Financing (Tables)
Long-term Debt [Table Text Block]
The following table summarizes the Company's long-term debt (in millions, except percentages):

 
As of
 
March 31, 2012
 
Amount
 
Effective Interest Rates
Senior notes:
 
 
 
3.10% fixed-rate notes, due 2016
$
300.0

 
3.12
%
4.60% fixed-rate notes, due 2021
300.0

 
4.63
%
5.95% fixed-rate notes, due 2041
400.0

 
6.01
%
Total senior notes
1,000.0

 
 
Unaccreted discount
(0.9
)
 
 
Total
$
999.1

 
 

Equity (Tables)
Comprehensive Income (Loss) Note [Table Text Block]
Comprehensive income attributable to Juniper Networks consists of the following (in millions):

 
Three Months Ended
 
March 31,
 
2012
 
2011
Consolidated net income
$
16.3

 
$
129.7

Other comprehensive income, net of tax:
 
 
 
Change in unrealized gain on investments, net of tax of nil
12.3

 
4.4

Change in foreign currency translation adjustment, net of tax of nil
4.6

 
6.6

Total other comprehensive income, net of tax
16.9

 
11.0

Consolidated comprehensive income
33.2

 
140.7

Adjust for comprehensive loss attributable to noncontrolling interest, net of tax
—

 
0.1

Comprehensive income attributable to Juniper Networks
$
33.2

 
$
140.8

Employee Benefit Plans (Tables)
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] 
The following table summarizes the Company’s stock option activity and related information as of and for the three months ended March 31, 2012 (in millions, except for per share amounts and years):

 
Outstanding Options
 
Number of Shares
 
Weighted Average
Exercise Price per Share
 
Weighted Average Remaining Contractual Term (In Years)
 
Aggregate Intrinsic Value
Balance at January 1, 2012
38.6

 
$
23.98

 
 
 
 
Options granted
3.0

 
22.93

 
 
 
 
Options canceled
(0.5
)
 
28.48

 
 
 
 
Options exercised
(0.7
)
 
12.67

 
 
 
 
Options expired
(0.2
)
 
26.18

 
 
 
 
Balance at March 31, 2012
40.2

 
$
24.02

 
3.7

 
$
106.4

 
 
 
 
 
 
 
 
As of March 31, 2012:
 
 
 
 
 
 
 
Vested or expected-to-vest options
38.3

 
$
23.80

 
3.6

 
$
104.5

Exercisable options
27.7

 
$
22.47

 
2.9

 
$
87.7

Schedule of Nonvested Share Activity [Table Text Block] 
The following table summarizes the Company’s RSU and PSA activity and related information as of and for the three months ended March 31, 2012 (in millions, except per share amounts and years):

 
Outstanding RSUs and PSAs
 
Number of Shares
 
Weighted Average Grant-Date Fair Value per Share
 
Weighted Average Remaining Contractual Term (In Years)
 
Aggregate Intrinsic Value
Balance at January 1, 2012
19.6

 
$
30.27

 
 
 
 
RSUs granted
6.5

 
22.04

 
 
 
 
RSUs assumed
0.2

 
22.47

 
 
 
 
PSAs granted (1)
2.2

 
23.22

 
 
 
 
RSUs vested
(1.6
)
 
27.55

 
 
 
 
PSAs vested
(1.4
)
 
15.63

 
 
 
 
RSUs canceled
(0.4
)
 
30.20

 
 
 
 
     PSAs canceled
(0.4
)
 
31.73

 
 
 
 
Balance at March 31, 2012
24.7

 
$
28.54

 
1.6

 
$
558.3

 
 
 
 
 
 
 
 
As of March 31, 2012:
 
 
 
 
 
 
 
Vested and expected-to-vest RSUs and PSAs
28.8

 
$
—

 
1.4

 
$
456.5

________________________________
(1)
The number of shares subject to PSAs granted represents the aggregate maximum number of shares that may be issued pursuant to the award over its full term. The aggregate number of shares subject to these PSAs that would be issued if performance goals determined by the Compensation Committee are achieved at target is 0.9 million shares. Depending on achievement of such performance goals, the range of shares that could be issued under these awards is 0 to 2.2 million shares.
Shares available for grant [Table Text Block] 
The following table presents the stock grant activity and the total number of shares available for grant under the 2006 Plan as of March 31, 2012 (in millions):
 
Number of Shares
Balance at January 1, 2012
41.1

RSUs and PSAs granted (1)
(18.3
)
Options granted
(3.0
)
RSUs and PSAs canceled (1)
1.7

Options canceled (2)
0.5

Options expired (2)
0.2

Balance at March 31, 2012
22.2

________________________________
(1)
RSUs and PSAs with a per share or unit purchase price lower than 100% of the fair market value of the Company's common stock on the day of the grant under the 2006 Plan are counted against shares authorized under the plan as two and one-tenth shares of common stock for each share subject to such award. The number of shares subject to PSAs granted represents the maximum number of shares that may be issued pursuant to the award over its full term.
(2)
Includes canceled or expired options under the 1996 Plan and the 2000 Plan that expired unexercised after May 18, 2006, which become available for grant under the 2006 Plan according to its terms.
Estimates of Weighted Average Fair Value Per Share Under Employee Purchase Plan And Stock Purchase Plan [Table Text Block] 
The weighted average assumptions used and the resulting estimates of fair value for employee stock options and the employee stock purchase plan during the three months ended March 31, 2012 and 2011 were:

 
Three Months Ended March 31,
 
2012
 
2011
Employee Stock Options:
 
 
 
Volatility factor
46%
 
41%
Risk-free interest rate
0.8%
 
1.7%
Expected life (years)
4.2
 
4.1
Dividend yield
—
 
—
Fair value per share
$8.51
 
$14.43
 
 
 
 
Employee Stock Purchase Plan:
 
 
 
Volatility factor
51%
 
33%
Risk-free interest rate
0.1%
 
1.8%
Expected life (years)
0.5
 
0.5
Dividend yield
—
 
—
Weighted-average fair value per share
$6.38
 
$9.07
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] 
The Company’s share-based compensation expense associated with stock options, employee stock purchases, RSUs, and PSAs is recorded in the following cost and expense categories for the three months ended March 31, 2012, and 2011 (in millions):

 
Three Months Ended
 
March 31,
 
2012
 
2011
Cost of revenues - Product
$
1.1

 
$
1.0

Cost of revenues - Service
5.2

 
3.9

Research and development
25.8

 
22.3

Sales and marketing
21.9

 
13.2

General and administrative
11.0

 
8.6

Total
$
65.0

 
$
49.0

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] 
The following table summarizes share-based compensation expense by award type (in millions):

 
Three Months Ended March 31,
 
2012
 
2011
Options
$
17.7

 
$
19.7

RSUs and PSAs
41.6

 
23.4

Assumed RSUs
0.2

 
—

Employee stock purchase plan
5.5

 
4.4

Other acquisition-related compensation
—

 
1.5

Total
$
65.0

 
$
49.0

Segments (Tables)
Financial information for each segment [Table Text Block] 
The following table summarizes financial information for each segment used by the CODM for the three months ended March 31, 2012 and 2011 (in millions):
 
Three Months Ended
 
March 31,
 
2012
 
2011
Net revenues:
 
 
 
PSD
$
824.2

 
$
898.6

SSD
208.3

 
203.0

Total net revenues
1,032.5

 
1,101.6

 
 
 
 
Segment contribution margin:
 
 
 
PSD
304.7

 
417.1

SSD
81.9

 
81.1

Total segment contribution margin
386.6

 
498.2

 
 
 
 
Corporate unallocated expenses (1)
(263.1
)
 
(252.4
)
Amortization of purchased intangible assets (2)
(7.3
)
 
(6.7
)
Share-based compensation expense
(65.0
)
 
(49.0
)
Share-based payroll tax expense
(0.4
)
 
(8.0
)
Restructuring and other charges
(2.0
)
 
0.3

Acquisition-related and other charges (3)
(1.1
)
 
(5.1
)
Total operating income
47.7

 
177.4

Other expense, net
(24.4
)
 
(6.5
)
Income before income taxes and noncontrolling interest
$
23.3

 
$
170.9

________________________________
(1)
Amount includes unallocated costs for global functions such as sales, marketing, and G&A.
(2)
Amount includes amortization expense of purchased intangible assets in operating expenses and in cost of revenues.
(3)
Amount includes acquisition-related costs in operating expenses and in cost of revenues.
Net revenues by geographic region [Table Text Block] 
The Company attributes revenues to geographic region based on the customer’s ship-to location. The following table shows net revenues by geographic region (in millions):

 
Three Months Ended
 
March 31,
 
2012
 
2011
Americas:
 
 
 
United States
$
468.4

 
$
526.0

Other
62.9

 
55.6

Total Americas
531.3

 
581.6

Europe, Middle East, and Africa
307.1

 
299.9

Asia Pacific
194.1

 
220.1

Total
$
1,032.5

 
$
1,101.6

Commitments and Contingencies (Tables)
Summary of principal contractual obligations [Table Text Block]
The following table summarizes the Company’s future principal contractual obligations as of March 31, 2012 (in millions):
 
Total
 
2012
 
2013
 
2014
 
2015
 
2016
 
Thereafter
 
Other
Operating leases
$
293.3

 
$
42.9

 
$
47.0

 
$
41.3

 
$
34.8

 
$
26.9

 
$
100.4

 
$
—

Purchase commitments
136.4

 
136.4

 
—

 
—

 
—

 
—

 
—

 
—

Tax liabilities
111.4

 
—

 
—

 
—

 
—

 
—

 
—

 
111.4

Long-term debt
1,000.0

 
—

 
—

 
—

 
—

 
300.0

 
700.0

 
—

Interest payment on long-term debt
849.7

 
23.5

 
46.9

 
46.9

 
46.9

 
41.9

 
643.6

 
—

Other contractual obligations
90.8

 
81.0

 
4.8

 
3.0

 
2.0

 
—

 
—

 
—

Total
$
2,481.6

 
$
283.8

 
$
98.7

 
$
91.2

 
$
83.7

 
$
368.8

 
$
1,444.0

 
$
111.4

Basis of Presentation (Details)
Mar. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
 
Company's interest in the joint venture - NSN
60.00% 
Business Combination, Purchase Price Allocation (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2012
Mar. 8, 2012
Business Acquisition Acquired Entity BitGravity [Member]
Business Acquisitions - 2012 [Member]
Feb. 13, 2012
Business Acquisition Acquired Entity Mykonos [Member]
Business Acquisitions - 2012 [Member]
Business Acquisition [Line Items]
 
 
 
Net tangible assets acquired
$ (0.7)
$ 0.1 
$ (0.8)
Acquired Finite and Indefinite Lived intangible Assets, Amount
36.7 
12.4 
24.3 
Goodwill
59.6 
0.5 
59.1 
Business Acquisition, Cost of Acquired Entity, Purchase Price
$ 95.6 
$ 13.0 
$ 82.6 
Business Combination, Intangible Assets Acquired (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 3 Months Ended 3 Months Ended 3 Months Ended
Mar. 31, 2012
Feb. 13, 2012
Business Acquisition Acquired Entity Mykonos [Member]
Business Acquisitions - 2012 [Member]
Mar. 31, 2012
Business Acquisition Acquired Entity Mykonos [Member]
Business Acquisitions - 2012 [Member]
Existing or Core Technology [Member]
Y
Feb. 13, 2012
Business Acquisition Acquired Entity Mykonos [Member]
Business Acquisitions - 2012 [Member]
Existing or Core Technology [Member]
Mar. 31, 2012
Business Acquisition Acquired Entity Mykonos [Member]
Business Acquisitions - 2012 [Member]
Trade Name and Trademarks [Member]
Y
Feb. 13, 2012
Business Acquisition Acquired Entity Mykonos [Member]
Business Acquisitions - 2012 [Member]
Trade Name and Trademarks [Member]
Mar. 8, 2012
Business Acquisition Acquired Entity BitGravity [Member]
Business Acquisitions - 2012 [Member]
Mar. 31, 2012
Business Acquisition Acquired Entity BitGravity [Member]
Business Acquisitions - 2012 [Member]
Existing or Core Technology [Member]
Y
Mar. 8, 2012
Business Acquisition Acquired Entity BitGravity [Member]
Business Acquisitions - 2012 [Member]
Existing or Core Technology [Member]
Mar. 31, 2012
Business Acquisition Acquired Entity BitGravity [Member]
Business Acquisitions - 2012 [Member]
Trade Name and Trademarks [Member]
Y
Mar. 8, 2012
Business Acquisition Acquired Entity BitGravity [Member]
Business Acquisitions - 2012 [Member]
Trade Name and Trademarks [Member]
Business Acquisition [Line Items]
 
 
 
 
 
 
 
 
 
 
 
Acquired finite-lived intangible asset, estimated useful life (in years)
 
 
6 
 
7 
 
 
3 
 
0 
 
Acquired finite-lived intangible assets, amount
 
 
 
$ 19.3 
 
$ 1.0 
 
 
$ 12.4 
 
$ 0 
Acquired Indefinite-lived Intangible Asset, Amount
 
4.0 
 
 
 
 
0 
 
 
 
 
Acquired Finite and Indefinite Lived intangible Assets, Amount
$ 36.7 
$ 24.3 
 
 
 
 
$ 12.4 
 
 
 
 
Business Combination, Textuals (Details) (USD $)
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Feb. 13, 2012
Business Acquisition Acquired Entity Mykonos [Member]
Business Acquisitions - 2012 [Member]
Mar. 8, 2012
Business Acquisition Acquired Entity BitGravity [Member]
Business Acquisitions - 2012 [Member]
Business Acquisition [Line Items]
 
 
 
 
Pro Forma results of operations not presented, impact to results of operations not material
not material 
 
 
 
Business Acquisition, Cost of Acquired Entity, Purchase Price
$ 95,600,000 
 
$ 82,600,000 
$ 13,000,000 
Business Acquisition, Purchase Price Allocation, Net Tangible Assets
(700,000)
 
(800,000)
100,000 
Business Acquisition, Purchase Price Allocation, Goodwill Amount
59,600,000 
 
59,100,000 
500,000 
Acquisition Costs, Period Cost
1,142,000 
4,101,000 
 
 
Business Combination, Acquisition Related Costs
1,100,000 1
5,100,000 1
 
 
Goodwill deductible for income tax purposes
$ 0 
 
 
 
Net Income per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Numerator
 
 
Net income attributable to Juniper Networks
$ 16,270 
$ 129,750 
Denominator
 
 
Weighted-average shares used to compute basic net income per share
527,186,000 
530,789,000 
Effect of dilutive securities:
 
 
Employee stock awards
6,500,000 
18,000,000 
Weighted-average shares used to compute diluted net income per share
533,683,000 
548,825,000 
Net income per share attributable to Juniper Networks common stockholders [Abstract]
 
 
Basic
$ 0.03 
$ 0.24 
Diluted
$ 0.03 
$ 0.24 
Net Income per Share Textuals
 
 
Anti-dilutive shares excluded from computation of diluted earnings per share
30,600,000 
5,800,000 
Cash, Cash Equivalents and Investments (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Mar. 31, 2011
Dec. 31, 2010
Cash and cash equivalents
$ 2,913,095 
$ 2,910,420 
$ 2,944,383 
$ 1,811,887 
Cash [Member]
 
 
 
 
Cash and cash equivalents
1,566,500 
1,559,700 
 
 
Demand Deposits [Member]
 
 
 
 
Cash and cash equivalents
680,600 
633,700 
 
 
Bank Time Deposits [Member]
 
 
 
 
Cash and cash equivalents
885,900 
926,000 
 
 
Cash Equivalents [Member]
 
 
 
 
Cash and cash equivalents
1,346,600 
1,350,700 
 
 
US Treasury Securities [Member]
 
 
 
 
Cash and cash equivalents
102,000 
0 
 
 
US Government-sponsored Enterprises Debt Securities [Member]
 
 
 
 
Cash and cash equivalents
0 
24,500 
 
 
Commercial Paper [Member]
 
 
 
 
Cash and cash equivalents
15,000 
10,000 
 
 
Money Market Funds [Member]
 
 
 
 
Cash and cash equivalents
$ 1,229,600 
$ 1,316,200 
 
 
Cash, Cash Equivalents and Investments - Available for Sale Securities (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2012
Dec. 31, 2011
Available-for-sale securities:
 
 
Available-for-sale securities, amortized cost
$ 2,634.1 
$ 2,722.8 
Available-for-sale securities, gross unrealized gains
3.7 
1.4 
Available-for-sale securities, gross unrealized losses
(0.4)
(0.8)
Available-for-sale securities, estimated fair value
2,637.4 
2,723.4 
Trading securities:
 
 
Trading securities, amortized cost
11.9 1
9.3 1
Trading securities, gross unrealized gains
0 1
0 1
Trading securities, gross unrealized losses
0 1
0 1
Trading securities, estimated fair value
11.9 1
9.3 1
Available-for-sale and Trading Investments [Abstract]
 
 
Total investments, amortized cost
2,646.0 
2,732.1 
Total investments, gross unrealized gains
3.7 
1.4 
Total investments, gross unrealized losses
(0.4)
(0.8)
Total investments, estimated fair value
2,649.3 
2,732.7 
Cash Equivalents [Member]
 
 
Available-for-sale and Trading Investments [Abstract]
 
 
Total investments, amortized cost
1,346.6 
1,350.7 
Total investments, gross unrealized gains
0 
0 
Total investments, gross unrealized losses
0 
0 
Total investments, estimated fair value
1,346.6 
1,350.7 
Short-term investments [Member]
 
 
Available-for-sale and Trading Investments [Abstract]
 
 
Total investments, amortized cost
515.8 
640.9 
Total investments, gross unrealized gains
1.6 
0.4 
Total investments, gross unrealized losses
0 
0 
Total investments, estimated fair value
517.4 
641.3 
Long-term investments [Member]
 
 
Available-for-sale and Trading Investments [Abstract]
 
 
Total investments, amortized cost
783.6 
740.5 
Total investments, gross unrealized gains
2.1 
1.0 
Total investments, gross unrealized losses
(0.4)
(0.8)
Total investments, estimated fair value
785.3 
740.7 
Debt Securities [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities, amortized cost
2,631.5 
2,722.8 
Available-for-sale securities, gross unrealized gains
2.4 
1.4 
Available-for-sale securities, gross unrealized losses
(0.4)
(0.8)
Available-for-sale securities, estimated fair value
2,633.5 
2,723.4 
US Government Debt Securities [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities, amortized cost
376.9 
301.1 
Available-for-sale securities, gross unrealized gains
0 
0 
Available-for-sale securities, gross unrealized losses
(0.2)
(0.1)
Available-for-sale securities, estimated fair value
376.7 
301.0 
US Government-sponsored Enterprises Debt Securities [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities, amortized cost
275.7 
430.8 
Available-for-sale securities, gross unrealized gains
0.5 
0.3 
Available-for-sale securities, gross unrealized losses
0 
(0.1)
Available-for-sale securities, estimated fair value
276.2 
431.0 
Certificates of Deposit [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities, amortized cost
25.6 
31.8 
Available-for-sale securities, gross unrealized gains
0 
0 
Available-for-sale securities, gross unrealized losses
0 
0 
Available-for-sale securities, estimated fair value
25.6 
31.8 
Commercial Paper [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities, amortized cost
15.0 
10.0 
Available-for-sale securities, gross unrealized gains
0 
0 
Available-for-sale securities, gross unrealized losses
0 
0 
Available-for-sale securities, estimated fair value
15.0 
10.0 
Asset-backed Securities [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities, amortized cost
141.8 
124.7 
Available-for-sale securities, gross unrealized gains
0.2 
0.1 
Available-for-sale securities, gross unrealized losses
0 
(0.1)
Available-for-sale securities, estimated fair value
142.0 
124.7 
Corporate Debt Securities [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities, amortized cost
566.9 
508.2 
Available-for-sale securities, gross unrealized gains
1.7 
1.0 
Available-for-sale securities, gross unrealized losses
(0.2)
(0.5)
Available-for-sale securities, estimated fair value
568.4 
508.7 
Money Market Funds [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities, amortized cost
1,229.6 
1,316.2 
Available-for-sale securities, gross unrealized gains
0 
0 
Available-for-sale securities, gross unrealized losses
0 
0 
Available-for-sale securities, estimated fair value
1,229.6 
1,316.2 
Equity Securities [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities, amortized cost
2.6 
 
Available-for-sale securities, gross unrealized gains
1.3 
 
Available-for-sale securities, gross unrealized losses
0 
 
Available-for-sale securities, estimated fair value
$ 3.9 
 
Cash, Cash Equivalents, and Investments - Maturities of Available for Sale Investments (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2012
Dec. 31, 2011
Available-for-sale and Trading Investments [Abstract]
 
 
Amortized cost due within one year
$ 1,847.9 
 
Gross unrealized gains due within one year
0.3 
 
Gross unrealized losses due within one year
0 
 
Estimated fair value due within one year
1,848.2 
 
Amortized cost due between one and five years
783.6 
 
Gross unrealized gains due between one and five years
2.1 
 
Gross unrealized losses due between one and five years
(0.4)
 
Estimated fair value due between one and five year
785.3 
 
Estimated fair value, no contractual maturity
14.5 
 
Gross unrealized gains, no contractual maturity
1.3 
 
Gross unrealized losses, no contractual maturity
0 
 
Amortized cost, no contractual maturity
15.8 
 
Total investments, amortized cost
2,646.0 
2,732.1 
Total investments, gross unrealized gains
3.7 
1.4 
Total investments, gross unrealized losses
0.4 
0.8 
Total investments, estimated fair value
$ 2,649.3 
$ 2,732.7 
Cash, Cash Equivalents, and Investments - Unrealized Loss for Trading and Available for Sale Investments (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
 
 
Fair value, less than 12 months
$ 383.0 
$ 599.4 
Unrealized loss, less than 12 months
(0.4)
(0.8)
Fair value, 12 months or greater
0.4 
0.3 
Unrealized loss, 12 months or greater
0 
0 
Total fair value, Available-for-sale investments in continuous unrealized loss position
383.4 
599.7 
Total unrealized loss, Available-for-sale investments in continuous unrealized loss position
(0.4)
(0.8)
Corporate Debt Securities [Member]
 
 
Schedule of Available-for-sale Securities [Line Items]
 
 
Fair value, less than 12 months
117.8 
189.9 
Unrealized loss, less than 12 months
(0.2)
(0.5)
Fair value, 12 months or greater
0 
0 
Unrealized loss, 12 months or greater
0 
0 
Total fair value, Available-for-sale investments in continuous unrealized loss position
117.8 
189.9 
Total unrealized loss, Available-for-sale investments in continuous unrealized loss position
(0.2)
(0.5)
US Government Debt Securities [Member]
 
 
Schedule of Available-for-sale Securities [Line Items]
 
 
Fair value, less than 12 months
207.2 
186.7 
Unrealized loss, less than 12 months
(0.2)
(0.1)
Fair value, 12 months or greater
0 
0 
Unrealized loss, 12 months or greater
0 
0 
Total fair value, Available-for-sale investments in continuous unrealized loss position
207.2 
186.7 
Total unrealized loss, Available-for-sale investments in continuous unrealized loss position
(0.2)
(0.1)
US Government-sponsored Enterprises Debt Securities [Member]
 
 
Schedule of Available-for-sale Securities [Line Items]
 
 
Fair value, less than 12 months
34.5 1
146.0 
Unrealized loss, less than 12 months
0 1
(0.1)
Fair value, 12 months or greater
0 1
0 
Unrealized loss, 12 months or greater
0 1
0 
Total fair value, Available-for-sale investments in continuous unrealized loss position
34.5 1
146.0 
Total unrealized loss, Available-for-sale investments in continuous unrealized loss position
0 1
(0.1)
Asset-backed Securities [Member]
 
 
Schedule of Available-for-sale Securities [Line Items]
 
 
Fair value, less than 12 months
23.5 1
76.8 2
Unrealized loss, less than 12 months
0 1
(0.1)2
Fair value, 12 months or greater
0.4 1
0.3 2
Unrealized loss, 12 months or greater
0 1
0 2
Total fair value, Available-for-sale investments in continuous unrealized loss position
23.9 1
77.1 2
Total unrealized loss, Available-for-sale investments in continuous unrealized loss position
$ 0 1
$ (0.1)2
Cash, Cash Equivalents, and Investments - Restricted Cash (Details) (USD $)
Mar. 31, 2012
Dec. 31, 2011
Restricted Cash and Investments [Abstract]
 
 
Restricted cash and investments
$ 82,504,000 
$ 78,307,000 
Restricted Cash [Member]
 
 
Restricted Cash and Investments [Abstract]
 
 
Restricted cash
600,000 
600,000 
Demand Deposits [Member]
 
 
Restricted Cash and Investments [Abstract]
 
 
Restricted cash
600,000 
600,000 
Restricted Investments [Member]
 
 
Restricted Cash and Investments [Abstract]
 
 
Restricted investments
81,900,000 
77,700,000 
Corporate Debt Securities [Member]
 
 
Restricted Cash and Investments [Abstract]
 
 
Restricted investments
1,700,000 
1,600,000 
Mutual Funds [Member]
 
 
Restricted Cash and Investments [Abstract]
 
 
Restricted investments
1,000,000 
1,000,000 
Money Market Funds [Member]
 
 
Restricted Cash and Investments [Abstract]
 
 
Restricted investments
$ 79,200,000 
$ 75,100,000 
Cash, Cash Equivalents, and Investments - Textuals (Details) (USD $)
3 Months Ended 3 Months Ended 3 Months Ended
Mar. 31, 2012
investments
Dec. 31, 2011
investments
Apr. 8, 2010
Mar. 31, 2012
Business Acquisition Acquired Entity Ankeena [Member]
month
Mar. 31, 2012
Cost Method Investee, Privately Held Companies
Mar. 31, 2011
Cost Method Investee, Privately Held Companies
Dec. 31, 2011
Cost Method Investee, Privately Held Companies
Mar. 31, 2012
Fair Value, Measurements, Nonrecurring [Member]
Cost Method Investee, Privately Held Companies
Dec. 31, 2011
Fair Value, Measurements, Nonrecurring [Member]
Cost Method Investee, Privately Held Companies
Mar. 31, 2012
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Inputs, Level 3 [Member]
Cost Method Investee, Privately Held Companies
Mar. 31, 2011
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Inputs, Level 3 [Member]
Cost Method Investee, Privately Held Companies
Total investments In unrealized loss position
89 
135 
 
 
 
 
 
 
 
 
 
Decrease in Restricted Cash
$ 79,000,000 
 
 
 
 
 
 
 
 
 
 
Business Acquisition, Cash Value of Unvested Restricted Shares
 
 
10,700,000 
100,000 
 
 
 
 
 
 
 
Business Acquisition, Payments for Restricted Shares That Have Vested
 
 
 
10,600,000 
 
 
 
 
 
 
 
Vesting Period For Restricted Shares
 
 
 
6 
 
 
 
 
 
 
 
Minority equity investment
 
 
 
 
36,000,000 
 
51,800,000 
6,000,000 
400,000 
 
 
Investment in privately-held companies
 
 
 
 
1,100,000 
6,000,000 
 
 
 
 
 
Cost-method Investments, Other than Temporary Impairment
$ 14,000,000 
 
 
 
 
 
 
 
 
$ 14,000,000 
$ 0 
Fair Value Measurements (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Fair Value Measurements (Textuals)
 
 
Amount of restricted investments measured at fair value included in the balance of Corporate Debt Securities
$ 1.7 
$ 1.6 
Amount of restricted investments measured at fair value included in the balance of Money Market Funds
79.2 
75.1 
Trading securities, amortized cost
11.9 1
9.3 1
Amount of Restricted Investments Measured at Fair Value Included in Balance of Mutual Funds
 
1.0 
Estimate of Fair Value, Fair Value Disclosure [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Derivative assets:
 
 
Derivative assets measured at fair value on a recurring basis
2.4 
0.4 
Total assets measured at fair value
2,733.6 
2,810.8 
Liabilities measured at fair value:
 
 
Derivative liability measured at fair value on a recurring basis
(3.1)
(9.6)
Liabilities measured at fair value
3.1 
9.6 
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Derivative assets:
 
 
Derivative assets measured at fair value on a recurring basis
0 
0 
Total assets measured at fair value
1,764.8 
1,865.1 
Liabilities measured at fair value:
 
 
Derivative liability measured at fair value on a recurring basis
0 
0 
Liabilities measured at fair value
0 
0 
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Derivative assets:
 
 
Derivative assets measured at fair value on a recurring basis
2.4 
0.4 
Total assets measured at fair value
968.8 
945.7 
Liabilities measured at fair value:
 
 
Derivative liability measured at fair value on a recurring basis
(3.1)
(9.6)
Liabilities measured at fair value
3.1 
9.6 
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Derivative assets:
 
 
Derivative assets measured at fair value on a recurring basis
0 
0 
Total assets measured at fair value
0 
0 
Liabilities measured at fair value:
 
 
Derivative liability measured at fair value on a recurring basis
0 
0 
Liabilities measured at fair value
0 
0 
Foreign Exchange Contract [Member] |
Estimate of Fair Value, Fair Value Disclosure [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Derivative assets:
 
 
Derivative assets measured at fair value on a recurring basis
2.4 
0.4 
Liabilities measured at fair value:
 
 
Derivative liability measured at fair value on a recurring basis
(3.1)
(9.6)
Foreign Exchange Contract [Member] |
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Derivative assets:
 
 
Derivative assets measured at fair value on a recurring basis
0 
0 
Liabilities measured at fair value:
 
 
Derivative liability measured at fair value on a recurring basis
0 
0 
Foreign Exchange Contract [Member] |
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Derivative assets:
 
 
Derivative assets measured at fair value on a recurring basis
2.4 
0.4 
Liabilities measured at fair value:
 
 
Derivative liability measured at fair value on a recurring basis
(3.1)
(9.6)
Foreign Exchange Contract [Member] |
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Derivative assets:
 
 
Derivative assets measured at fair value on a recurring basis
0 
0 
Liabilities measured at fair value:
 
 
Derivative liability measured at fair value on a recurring basis
0 
0 
Available-for-sale Securities [Member] |
Estimate of Fair Value, Fair Value Disclosure [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
2,719.3 
 
Available-for-sale Securities [Member] |
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
1,752.9 
 
Available-for-sale Securities [Member] |
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
966.4 
 
Available-for-sale Securities [Member] |
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 
 
Debt Securities [Member] |
Estimate of Fair Value, Fair Value Disclosure [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
2,715.4 
2,800.1 
Debt Securities [Member] |
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
1,749.0 
1,854.8 
Debt Securities [Member] |
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
966.4 
945.3 
Debt Securities [Member] |
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 
0 
US Government Debt Securities [Member] |
Estimate of Fair Value, Fair Value Disclosure [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
376.7 
301.0 
US Government Debt Securities [Member] |
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
187.0 
149.3 
US Government Debt Securities [Member] |
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
189.7 
151.7 
US Government Debt Securities [Member] |
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 
0 
US Government-sponsored Enterprises Debt Securities [Member] |
Estimate of Fair Value, Fair Value Disclosure [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
276.2 
431.0 
US Government-sponsored Enterprises Debt Securities [Member] |
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
252.2 
314.2 
US Government-sponsored Enterprises Debt Securities [Member] |
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
24.0 
116.8 
US Government-sponsored Enterprises Debt Securities [Member] |
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 
0 
Commercial Paper [Member] |
Estimate of Fair Value, Fair Value Disclosure [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
15.0 
10.0 
Commercial Paper [Member] |
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 
0 
Commercial Paper [Member] |
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
15.0 
10.0 
Commercial Paper [Member] |
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 
0 
Corporate Debt Securities [Member] |
Estimate of Fair Value, Fair Value Disclosure [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
570.1 2
510.3 3
Corporate Debt Securities [Member] |
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 2
0 3
Corporate Debt Securities [Member] |
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
570.1 2
510.3 3
Corporate Debt Securities [Member] |
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 2
0 3
Certificates of Deposit [Member] |
Estimate of Fair Value, Fair Value Disclosure [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
25.6 
31.8 
Certificates of Deposit [Member] |
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 
0 
Certificates of Deposit [Member] |
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
25.6 
31.8 
Certificates of Deposit [Member] |
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 
0 
Asset-backed Securities [Member] |
Estimate of Fair Value, Fair Value Disclosure [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
142.0 
124.7 
Asset-backed Securities [Member] |
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 
0 
Asset-backed Securities [Member] |
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
142.0 
124.7 
Asset-backed Securities [Member] |
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 
0 
Mutual Funds [Member] |
Estimate of Fair Value, Fair Value Disclosure [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
1.0 4
 
Trading securities:
 
 
Trading securities measured at fair value on a recurring basis
11.9 5
10.3 6
Mutual Funds [Member] |
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
1.0 4
 
Trading securities:
 
 
Trading securities measured at fair value on a recurring basis
11.9 5
10.3 6
Mutual Funds [Member] |
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 4
 
Trading securities:
 
 
Trading securities measured at fair value on a recurring basis
0 5
0 6
Mutual Funds [Member] |
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 4
 
Trading securities:
 
 
Trading securities measured at fair value on a recurring basis
0 5
0 6
Money Market Funds [Member] |
Estimate of Fair Value, Fair Value Disclosure [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
1,308.8 7
1,391.3 8
Money Market Funds [Member] |
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
1,308.8 7
1,391.3 8
Money Market Funds [Member] |
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 7
0 8
Money Market Funds [Member] |
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 7
0 8
Equity Securities [Member] |
Estimate of Fair Value, Fair Value Disclosure [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
3.9 
 
Equity Securities [Member] |
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
3.9 
 
Equity Securities [Member] |
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 
 
Equity Securities [Member] |
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Available-for-sale securities:
 
 
Available-for-sale securities measured at fair value on a recurring basis
0 
 
Trading Securities [Member] |
Estimate of Fair Value, Fair Value Disclosure [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Trading securities:
 
 
Trading securities measured at fair value on a recurring basis
11.9 
10.3 
Trading Securities [Member] |
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Trading securities:
 
 
Trading securities measured at fair value on a recurring basis
11.9 
10.3 
Trading Securities [Member] |
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Trading securities:
 
 
Trading securities measured at fair value on a recurring basis
0 
0 
Trading Securities [Member] |
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Measurements, Recurring [Member]
 
 
Trading securities:
 
 
Trading securities measured at fair value on a recurring basis
$ 0 
$ 0 
Fair Value Measurements by Balance Sheet Grouping (Details) (Fair Value, Measurements, Recurring [Member], USD $)
In Millions, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Fair Value, Inputs, Level 1 [Member]
 
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
 
 
Cash equivalents measured at fair value
$ 1,229.6 
$ 1,316.2 
Short-term investments measured at fair value
185.5 
168.9 
Long-term investments measured at fair value
269.5 
303.9 
Restricted cash and investments measured at fair value
80.2 
76.1 
Prepaid expenses and other current assets measured at fair value
0 
0 
Total assets measured at fair value
1,764.8 
1,865.1 
Other accrued liabilities measured at fair value
0 
0 
Liabilities measured at fair value
0 
0 
Fair Value, Inputs, Level 2 [Member]
 
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
 
 
Cash equivalents measured at fair value
117.0 
34.5 
Short-term investments measured at fair value
331.9 
472.4 
Long-term investments measured at fair value
515.8 
436.8 
Restricted cash and investments measured at fair value
1.7 
1.6 
Prepaid expenses and other current assets measured at fair value
2.4 
0.4 
Total assets measured at fair value
968.8 
945.7 
Other accrued liabilities measured at fair value
3.1 
9.6 
Liabilities measured at fair value
3.1 
9.6 
Fair Value, Inputs, Level 3 [Member]
 
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
 
 
Cash equivalents measured at fair value
0 
0 
Short-term investments measured at fair value
0 
0 
Long-term investments measured at fair value
0 
0 
Restricted cash and investments measured at fair value
0 
0 
Prepaid expenses and other current assets measured at fair value
0 
0 
Total assets measured at fair value
0 
0 
Other accrued liabilities measured at fair value
0 
0 
Liabilities measured at fair value
0 
0 
Estimate of Fair Value, Fair Value Disclosure [Member]
 
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
 
 
Cash equivalents measured at fair value
1,346.6 
1,350.7 
Short-term investments measured at fair value
517.4 
641.3 
Long-term investments measured at fair value
785.3 
740.7 
Restricted cash and investments measured at fair value
81.9 
77.7 
Prepaid expenses and other current assets measured at fair value
2.4 
0.4 
Total assets measured at fair value
2,733.6 
2,810.8 
Other accrued liabilities measured at fair value
3.1 
9.6 
Liabilities measured at fair value
$ 3.1 
$ 9.6 
Fair Value Measurements, Assets and Liabilities Measured On A Nonrecurring Basis (Details) (USD $)
3 Months Ended 3 Months Ended
Mar. 31, 2012
Mar. 31, 2012
Fair Value, Measurements, Nonrecurring [Member]
Dec. 31, 2011
Fair Value, Measurements, Nonrecurring [Member]
Mar. 31, 2012
Cost Method Investee, Privately Held Companies
Dec. 31, 2011
Cost Method Investee, Privately Held Companies
Mar. 31, 2012
Cost Method Investee, Privately Held Companies
Fair Value, Measurements, Nonrecurring [Member]
Dec. 31, 2011
Cost Method Investee, Privately Held Companies
Fair Value, Measurements, Nonrecurring [Member]
Mar. 31, 2012
Cost Method Investee, Privately Held Companies
Fair Value, Inputs, Level 3 [Member]
Fair Value, Measurements, Nonrecurring [Member]
Mar. 31, 2011
Cost Method Investee, Privately Held Companies
Fair Value, Inputs, Level 3 [Member]
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
 
 
 
 
 
 
 
 
 
Equity investments measured on nonrecurring basis
 
 
 
$ 36,000,000 
$ 51,800,000 
$ 6,000,000 
$ 400,000 
 
 
Loss due to impairment of privately held equity investments measured on a non-recurring basis
14,000,000 
 
 
 
 
 
 
14,000,000 
0 
Fair Value Liabilities Measured On Nonrecurring Basis Liabilities
 
$ 0 
$ 0 
 
 
 
 
 
 
Derivative Instruments, Cash Flow Hedges (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 3 Months Ended
Mar. 31, 2012
Mar. 31, 2012
Foreign Exchange Contract [Member]
Cash Flow Hedging [Member]
Mar. 31, 2011
Foreign Exchange Contract [Member]
Cash Flow Hedging [Member]
Mar. 31, 2012
Other Current Assets [Member]
Foreign Exchange Contract [Member]
Dec. 31, 2011
Other Current Assets [Member]
Foreign Exchange Contract [Member]
Mar. 31, 2012
Other Current Liabilities [Member]
Foreign Exchange Contract [Member]
Dec. 31, 2011
Other Current Liabilities [Member]
Foreign Exchange Contract [Member]
Mar. 31, 2012
Operating Expense [Member]
Foreign Exchange Contract [Member]
Cash Flow Hedging [Member]
Mar. 31, 2011
Operating Expense [Member]
Foreign Exchange Contract [Member]
Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
 
 
 
 
 
 
 
 
 
Maximum Length of Time Hedged in Cash Flow Hedge
one year or less 
 
 
 
 
 
 
 
 
Derivative Asset Designated as Hedging Instrument, Fair Value
 
 
 
$ 2.3 
$ 0.4 
 
 
 
 
Derivative Liability Designated as Hedging Instrument, Fair Value
 
 
 
 
 
3.1 
9.6 
 
 
Derivative Instruments, Gain Recognized in Other Comprehensive Income (Loss), Effective Portion
 
6.0 
5.2 
 
 
 
 
 
 
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion
 
 
 
 
 
 
 
(3.5)
 
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion
 
 
 
 
 
 
 
 
$ 0.5 
Derivative Instruments, Non-Designated Hedges (Details) (Foreign Exchange Contract [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
 
 
Maturity Period Of Non Designated Hedges Derivatives
approximately two months 
 
Interest And Other Income, Net [Member]
 
 
Derivative Instruments, Gain (Loss) [Line Items]
 
 
Derivative instruments not designated as hedging instruments, loss
$ 0.1 
$ (0.2)
Derivative Instruments (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Derivative [Line Items]
 
 
Cash flow hedges
$ 122.4 
$ 184.3 
Non-designated hedges
122.9 
122.7 
Total
$ 245.3 
$ 307.0 
Goodwill and Purchased Intangible Assets (Details) (USD $)
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Goodwill [Roll Forward]
 
 
Goodwill, beginning of period
$ 3,928,144,000 
 
Goodwill acquired
59,600,000 
 
Goodwill, end of period
3,987,707,000 
 
Goodwill, Translation and Purchase Accounting Adjustments
0 
 
Goodwill, Impairment Loss
0 
0 
PSD Segment [Member]
 
 
Goodwill [Roll Forward]
 
 
Goodwill, beginning of period
1,795,600,000 
 
Goodwill acquired
0 
 
Goodwill, end of period
1,795,600,000 
 
SSD Segment [Member]
 
 
Goodwill [Roll Forward]
 
 
Goodwill, beginning of period
2,132,500,000 
 
Goodwill acquired
59,600,000 
 
Goodwill, end of period
$ 2,192,100,000 
 
Goodwill and Purchased Intangible Assets, Finite Lived Intangible Assets by Class (Details) (USD $)
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Dec. 31, 2011
Purchased Intangible Assets [Line Items]
 
 
 
Finite-Lived Intangible Assets, Gross
$ 623,700,000 
 
$ 591,000,000 
Finite-Lived Intangible Assets, Accumulated Amortization
(478,000,000)
 
(470,700,000)
Finite-Lived Intangible Assets, Net
145,700,000 
 
120,300,000 
Intangible Assets Gross Excluding Goodwill
630,500,000 
 
593,800,000 
Purchased Intangible Assets, Accumulated Amortization
(478,000,000)
 
(470,700,000)
Intangible Assets, Net (Excluding Goodwill)
152,541,000 
 
123,114,000 
Amortization Of Purchased Intangible Assets
7,300,000 1
6,700,000 1
 
Impairment of finite-lived intangible assets
0 
0 
 
In Process Research And Development [Member]
 
 
 
Purchased Intangible Assets [Line Items]
 
 
 
Indefinite-lived Intangible Assets
6,800,000 
 
2,800,000 
Technologies and Patents [Member]
 
 
 
Purchased Intangible Assets [Line Items]
 
 
 
Finite-Lived Intangible Assets, Gross
531,200,000 
 
499,500,000 
Finite-Lived Intangible Assets, Accumulated Amortization
(410,500,000)
 
(404,200,000)
Finite-Lived Intangible Assets, Net
120,700,000 
 
95,300,000 
Other Intangible Assets [Member]
 
 
 
Purchased Intangible Assets [Line Items]
 
 
 
Finite-Lived Intangible Assets, Gross
92,500,000 
 
91,500,000 
Finite-Lived Intangible Assets, Accumulated Amortization
(67,500,000)
 
(66,500,000)
Finite-Lived Intangible Assets, Net
$ 25,000,000 
 
$ 25,000,000 
Goodwill and Purchased Intangible Assets, Estimated Future Amortization Expense Intangible Assets (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
 
Future Amortization Expense, Remainder of Fiscal Year
$ 26.2 
Future Amortization Expense, Year Two
34.7 
Future Amortization Expense, Year Three
32.8 
Future Amortization Expense, Year Four
24.8 
Future Amortization Expense, Year Five
11.1 
Future Amortization Expense, after Year Five
16.1 
Finite-Lived Intangible Assets, Future Amortization Expense
$ 145.7 
Other Financial Information Other Financial Information, Inventories (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Inventory Disclosure [Abstract]
 
 
Production materials
$ 77.3 
$ 52.4 
Finished goods
14.7 
16.7 
Total inventories, net
$ 92.0 
$ 69.1 
Other Financial Information, Warranties (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Movement in Standard Product Warranty Accrual [Roll Forward]
 
 
Beginning balance
$ 28.3 
$ 35.9 
Provisions made during the period, net
8.9 
15.3 
Change in estimate
0 
(0.8)
Actual costs incurred during the period
(7.9)
12.1 
Ending balance
$ 29.3 
$ 38.3 
Other Financial Information, Deferred Revenue (Details) (USD $)
Mar. 31, 2012
Dec. 31, 2011
Deferred Product Revenue [Abstract]
 
 
Deferred revenue, net
$ 999,600,000 
$ 967,000,000 
Deferred Revenue Reported as [Abstract]
 
 
Deferred Revenue, Current
760,621,000 
712,663,000 
Deferred Revenue, Noncurrent
238,964,000 
254,364,000 
Sales Revenue, Goods, Net [Member]
 
 
Deferred Product Revenue [Abstract]
 
 
Undelivered product commitments and other product deferrals
286,400,000 
288,100,000 
Distributor inventory and other sell-through items
114,000,000 
134,000,000 
Deferred gross product revenue
400,400,000 
422,100,000 
Deferred cost of product revenue
(118,400,000)
(136,900,000)
Deferred revenue, net
282,000,000 
285,200,000 
Sales Revenue, Services, Net [Member]
 
 
Deferred Product Revenue [Abstract]
 
 
Deferred revenue, net
$ 717,600,000 
$ 681,800,000 
Other Financial Information, Restructuring (Details) (USD $)
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Restructuring Reserve [Line Items]
 
 
Restructuring, net
$ 2,039,000 
$ (347,000)
Restructuring Reserve [Roll Forward]
 
 
Beginning Balance
4,100,000 
 
Charges
2,000,000 
 
Cash payments
1,900,000 
 
Non-cash settlements and other adjustments
(900,000)
300,000 
Ending Balance
5,100,000 
 
Facilities [Member]
 
 
Restructuring Reserve [Roll Forward]
 
 
Beginning Balance
1,000,000 
 
Charges
(200,000)
 
Cash payments
200,000 
 
Non-cash settlements and other adjustments
0 
 
Ending Balance
600,000 
 
Severance [Member]
 
 
Restructuring Reserve [Roll Forward]
 
 
Beginning Balance
3,100,000 
 
Charges
2,200,000 
 
Cash payments
1,700,000 
 
Non-cash settlements and other adjustments
(900,000)
 
Ending Balance
$ 4,500,000 
 
Other Financial Information, Interest and Other Income Net (Details) (USD $)
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Component of Other Income, Nonoperating [Line Items]
 
 
Interest income
$ 2,800,000 
$ 2,400,000 
Interest expense
(14,200,000)
(6,500,000)
Other
(13,000,000)
(2,400,000)
Other income (expense), net
(24,431,000)
(6,462,000)
Cost-method Investments, Other than Temporary Impairment
$ (14,000,000)
 
Long-Term Debt and Financing (Details) (USD $)
3 Months Ended
Mar. 31, 2012
D
Mar. 31, 2011
Dec. 31, 2011
Long-Term Debt [Line Items]
 
 
 
Long-term Debt, Gross
$ 1,000,000,000 
 
 
Unaccreted Discount
(900,000)
 
 
Long-term debt
999,071,000 
 
999,034,000 
Debt Instrument, Fair Value
1,097,600,000 
 
1,069,800,000 
Financing Arrangements [Abstract]
 
 
 
Number of days due from receivable
30 
 
 
Sale of receivables
120,600,000 
174,800,000 
 
Proceeds from sale and collection of receivables
178,500,000 
194,300,000 
 
Receivables from sale of receivables
101,300,000 
 
162,900,000 
Cash received from financing provider that has not been recognized as revenue
40,900,000 
 
33,300,000 
Fixed Rate Note Due 2016 [Member]
 
 
 
Long-Term Debt [Line Items]
 
 
 
Long-term Debt, Gross
300,000,000 
 
 
Debt Instrument, Interest Rate, Effective Percentage
3.12% 
 
 
Debt Instrument, Interest Rate, Stated Percentage
3.10% 
 
 
Fixed Rate Note Due 2021 [Member]
 
 
 
Long-Term Debt [Line Items]
 
 
 
Long-term Debt, Gross
300,000,000 
 
 
Debt Instrument, Interest Rate, Effective Percentage
4.63% 
 
 
Debt Instrument, Interest Rate, Stated Percentage
4.60% 
 
 
Fixed Rate Note Due 2041 [Member]
 
 
 
Long-Term Debt [Line Items]
 
 
 
Long-term Debt, Gross
$ 400,000,000 
 
 
Debt Instrument, Interest Rate, Effective Percentage
6.01% 
 
 
Debt Instrument, Interest Rate, Stated Percentage
5.95% 
 
 
Equity, Stock Repurchase Activities (Details) (USD $)
Share data in Millions, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Stock Repurchased and Retired During Period, Shares
2.4 
4.8 
Common Stock Repurchased Under Stock Repurchase Program Average Purchase Price
$ 21.75 
$ 42.14 
Common stock repurchased and retired under stock repurchase programs, value
$ 51,600,000 
$ 200,200,000 
Stock Repurchase Program 2008 [Member]
 
 
Common stock authorized for repurchase under the 2010 and 2008 Stock Repurchase Programs
1,000,000,000 
 
Stock Repurchase Program, Remaining Authorized Repurchase Amount
0 
 
Stock Repurchase Program 2010 [Member]
 
 
Common stock authorized for repurchase under the 2010 and 2008 Stock Repurchase Programs
1,000,000,000 
 
Stock Repurchase Program, Remaining Authorized Repurchase Amount
$ 162,200,000 
 
Equity, Comprehensive Income (Details) (USD $)
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Consolidated net income
$ 16,270,000 
$ 129,660,000 
Other Comprehensive Income (Loss), Net of Tax:
 
 
Change in net unrealized (loss) gain on investments, net of tax of nil
12,300,000 
4,400,000 
Change in foreign currency translation adjustment, net of tax of nil
4,600,000 
6,600,000 
Other Comprehensive Income (Loss), Tax [Abstract]
 
 
Other comprehensive income (loss), unrealized holding gain (loss) on securities arising during period, tax
   
   
Other comprehensive income (loss), foreign currency translation adjustment, tax
   
   
Total other comprehensive income (loss), net of tax
16,900,000 
11,000,000 
Consolidated comprehensive income
33,200,000 
140,700,000 
Adjust for comprehensive loss attributable to noncontrolling interest
0 
100,000 
Comprehensive income attributable to Juniper Networks
$ 33,148,000 
$ 140,847,000 
Employee Benefit Plans (Details) (USD $)
1 Months Ended 3 Months Ended
May 31, 2011
May 31, 2010
Mar. 31, 2012
Dec. 31, 2011
Share-Based Compensation Plans
 
 
 
 
Maximum Additional Shares Expire Unexercised, Under 1996 and 2000 Plan
 
 
75,000,000 
 
Outstanding Stock Options and RSU's Covering Shares of Common Stock
 
 
1,600,000 
 
Stock Option Activities
 
 
 
 
Beginning Balance, Number of Shares
 
 
38,600,000 
 
Beginning Balance, Weighted Average Exercise Price
 
 
$ 23.98 
 
Options Granted, Number of Shares
 
 
3,000,000 
 
Options Granted, Weighted Average Exercise Price
 
 
$ 22.93 
 
Options Canceled, Number of Shares
 
 
(500,000)
 
Options Canceled, Weighted Average Exercise Price
 
 
$ 28.48 
 
Options Exercised, Number of Shares
 
 
(700,000)
 
Options Exercised, Weighted Average Exercise Price
 
 
$ 12.67 
 
Options Expired, Number of Shares
 
 
(200,000)
 
Options Expired, Weighted Average Exercise Price
 
 
$ 26.18 
 
Ending Balance, Number of Shares
 
 
40,200,000 
 
Ending Balance, Weighted Average Exercise Price
 
 
$ 24.02 
 
Weighted Average Remaining Contractual Term at Period End
 
 
3.7 
 
Aggregate Intrinsic Value at Period End
 
 
$ 106,400,000 
 
Vested or Expected-to-Vest Options, Number of Shares at Period End
 
 
38,300,000 
 
Vested or Expected-to-Vest Options, Weighted Average Exercise Price at Period End
 
 
$ 23.80 
 
Vested and Expected-to-Vest Options, Weighted Average Remaining Contractual Term at Period End
 
 
3.6 
 
Vested or Expected-to-Vest Options, Aggregate Intrinsic Value at Period End
 
 
104,500,000 
 
Exercisable Options, Number of Shares at Period End
 
 
27,700,000 
 
Exercisable Options, Weighted Average Exercise Price at Period End
 
 
$ 22.47 
 
Exercisable Options, Weighted Average Remaining Contractual Term at Period End
 
 
2.9 
 
Exercisable Options, Aggregate Intrinsic Value at Period End
 
 
87,700,000 
 
Closing Stock Price At Plan Period End
 
 
$ 22.88 
 
Intrinsic Value of Options Exercise, Pre-Tax
 
 
6,900,000 
 
Total Fair Value of Options Vested
 
 
27,900,000 
 
Employee Stock Purchase Plan 2008 [Member]
 
 
 
 
Share-Based Compensation Plans
 
 
 
 
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price
 
 
15.00% 
 
Periodic Payroll Deduction - Percentage of Base Salary
 
 
10.00% 
 
Maximum Purchase of Common Stock, Shares
 
 
6,000 
 
Maximum Purchase of Common Stock, Value
 
 
$ 25,000 
 
Stock Options [Member]
 
 
 
 
Stock Option Activities
 
 
 
 
Share-based compensation stock option contractual life from grant date since 2006, in years
 
 
7 
 
Employee Stock Purchase Plan [Member]
 
 
 
 
Share-Based Compensation Plans
 
 
 
 
ESPP purchase period, share limitation (in months)
 
 
12 
 
ESPP purchase period, value limitation (in calendar years)
 
 
1 
 
Stock Option Activities
 
 
 
 
Share-based compensation stock option contractual life from grant date, prior to 2006, in years
 
 
10 
 
Equity Incentive Plan 2006 [Member]
 
 
 
 
Share-Based Compensation Plans
 
 
 
 
Number of Shares in Authorized
 
 
64,500,000 
 
Additional Authorized Share Reserve Approved By Shareholders
30,000,000 
30,000,000 
 
 
Number of Shares Outstanding
 
 
64,900,000 
 
Number of Shares Available for Future Issuance
 
 
22,200,000 
41,100,000 
Stock Option Activities
 
 
 
 
Options Granted, Number of Shares
 
 
3,000,000 
 
Options Canceled, Number of Shares
 
 
(500,000)1
 
Options Expired, Number of Shares
 
 
(200,000)1
 
Employee Benefit Plans, Share Based Compensation, Equity Instruments Other Than Options (Details) (USD $)
In Millions, except Share data, unless otherwise specified
3 Months Ended 3 Months Ended 3 Months Ended
Mar. 31, 2012
Y
Dec. 31, 2011
Mar. 31, 2012
Restricted Stock Units (RSUs) [Member]
Mar. 31, 2012
Restricted Stock Units (RSUs) [Member]
Minimum [Member]
Y
Mar. 31, 2012
Restricted Stock Units (RSUs) [Member]
Maximum [Member]
Y
Mar. 31, 2012
Performance Share Awards [Member]
Mar. 31, 2012
Restricted Stock Units and Performance Share Awards [Member]
Dec. 31, 2011
Restricted Stock Units and Performance Share Awards [Member]
Mar. 31, 2012
Employee Stock Purchase Plan 2008 [Member]
Mar. 31, 2011
Employee Stock Purchase Plan 2008 [Member]
Mar. 31, 2012
Employee Stock Purchase Plan [Member]
M
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
 
 
 
 
 
 
 
 
 
 
 
Restricted Stock Units Vest From Grant Date In Years
 
 
 
3 
4 
 
 
 
 
 
 
Share-Based Compensation Arrangement Vesting Period PSA in Years
3 
 
 
 
 
 
 
 
 
 
 
Restricted Stock Units And Performance Share Awards Activities
 
 
 
 
 
 
 
 
 
 
 
Beginning Balance, Number of Shares
 
 
 
 
 
 
24,700,000 
19,600,000 
 
 
 
Beginning Balance, Weighted Average Grant-Date Fair Value
 
 
 
 
 
 
$ 28.54 
$ 30.27 
 
 
 
Awards Granted, Number of Shares
 
 
6,500,000 
 
 
2,200,000 1
 
 
 
 
 
Awards Granted, Weighted Average Grant-Date Fair Value
 
 
$ 22.04 
 
 
$ 23.22 
 
 
 
 
 
share-based compensation arrangement by share based payment award, assumed awards
 
 
200,000 
 
 
 
 
 
 
 
 
Share-based Compensation Arrangement by Share-based Payment Award, Equity INstruments Other than Options, Assumed Awards, Weighted AVerage Grant Date Fair Value
 
 
$ 22.47 
 
 
 
 
 
 
 
 
Awards Vested, Number of Shares
 
 
(1,600,000)
 
 
(1,400,000)
 
 
 
 
 
Awards Vested, Weighted Average Grant-Date Fair Value
 
 
$ 27.55 
 
 
$ 15.63 
 
 
 
 
 
Awards Canceled, Number of Shares
 
 
(400,000)
 
 
(400,000)
 
 
 
 
 
Awards Canceled, Weighted Average Grant-Date Fair Value
 
 
$ 30.20 
 
 
$ 31.73 
 
 
 
 
 
Ending Balance, Number of Shares
 
 
 
 
 
 
24,700,000 
19,600,000 
 
 
 
Ending Balance, Weighted Average Grant-Date Fair Value
 
 
 
 
 
 
$ 28.54 
$ 30.27 
 
 
 
RSUs and PSAs, Weighted Average Remaining Contractual Term at Period End
1.6 
 
 
 
 
 
 
 
 
 
 
RSUs and PSAs, Aggregate Intrinsic Value at Period End
$ 558.3 
 
 
 
 
 
 
 
 
 
 
Vested and Expected-to-Vest RSUs and PSAs, Number of Shares at Period End
28,800,000 
 
 
 
 
 
 
 
 
 
 
Vested and Expected-to-Vest RSUs and PSAs, Weighted Average Grant-Date Fair Value at Period End
$ 0.00 
 
 
 
 
 
 
 
 
 
 
Vested and Expected-to-Vest RSUs and PSAs, Weighted Average Remaining Contractual Term at Period End
1.4 
 
 
 
 
 
 
 
 
 
 
Vested and Expected-to-Vest RSUs and PSAs, Aggregate Intrinsic Value at Period End
$ 456.5 
 
 
 
 
 
 
 
 
 
 
Aggregate Number Of Shares Subject to PSAs Granted
 
 
 
 
 
900,000 
 
 
 
 
 
Minimum shares to be Issued on achievement of performance goals in respect of PSAs
 
 
 
 
 
0 
 
 
 
 
 
Maximum shares to be issued on achievement of performance goals in respect of PSAs
 
 
 
 
 
2,200,000 
 
 
 
 
 
Employee Stock Purchase Plan
 
 
 
 
 
 
 
 
 
 
 
Stock based compensation incremental Board approved offering period in months
 
 
 
 
 
 
 
 
 
 
6 
Stock Issued During Period, Shares, Employee Stock Purchase Plans
 
 
 
 
 
 
 
 
1,700,000 
1,000,000 
 
Average Price of Common Stock, Per Share
 
 
 
 
 
 
 
 
$ 17.79 
$ 23.89 
 
Common Stock, Shares, Issued
529,177,000 
526,409,000 
 
 
 
 
 
 
 
 
7,700,000 
Common Stock, Capital Shares Reserved for Future Issuance
93,000,000 
 
 
 
 
 
 
 
 
 
4,300,000 
Employee Benefit Plans, Shares Available For Grant (Details)
In Millions, unless otherwise specified
1 Months Ended 3 Months Ended
May 31, 2011
May 31, 2010
Mar. 31, 2012
Shares Available For Grant
 
 
 
Options Granted, Number of Shares
 
 
(3.0)
Options Canceled, Number of Shares
 
 
0.5 
Options Expired, Number of Shares
 
 
0.2 
Common Stock, Capital Shares Reserved for Future Issuance
 
 
93.0 
Employee Stock Purchase Plan [Member]
 
 
 
Shares Available For Grant
 
 
 
Common Stock, Capital Shares Reserved for Future Issuance
 
 
4.3 
Restricted Stock Units and Performance Share Awards [Member]
 
 
 
Shares Available For Grant
 
 
 
Fair Market Value on Date of Grant For RSUS And PSAS Issued at Discount, Maximum Percentage
 
 
100.00% 
Common Stock for Each Share Subject to RSUs and PSAs
 
 
2.1 
Equity Incentive Plan 2006 [Member]
 
 
 
Shares Available For Grant
 
 
 
Beginning Balance, Number of Shares
 
 
41.1 
Additional Authorized Share Reserve Approved By Shareholders
30.0 
30.0 
 
Awards Granted, Number of Shares
 
 
(18.3)1
Options Granted, Number of Shares
 
 
(3.0)
Awards Canceled, Number of Shares
 
 
1.7 1
Options Canceled, Number of Shares
 
 
0.5 2
Options Expired, Number of Shares
 
 
0.2 2
Ending Balance, Number of Shares
 
 
22.2 
Employee Benefit Plans, Assumptions and Resulting Estimates of Fair Value (Details)
3 Months Ended
Mar. 31, 2012
Y
Mar. 31, 2011
Y
Stock Options [Member]
 
 
Estimates of Fair Value
 
 
Expected Volatility Rate
46.00% 
41.00% 
Risk Free Interest Rate
0.80% 
1.70% 
Expected Term
4.2 
4.1 
Dividend yield
0.00% 
0.00% 
Weighted-average fair value per share
$ 8.51 
$ 14.43 
Employee Stock Purchase Plan 2008 [Member]
 
 
Estimates of Fair Value
 
 
Expected Volatility Rate
51.00% 
33.00% 
Risk Free Interest Rate
0.10% 
1.80% 
Expected Term
0.5 
0.5 
Dividend yield
0.00% 
0.00% 
Weighted-average fair value per share
$ 6.38 
$ 9.07 
Employee Benefit Plans, Share Based Compensation by Cost and Expense Categories (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Stock Based Compensation Expense Recorded in Cost and Expense Categories
 
 
Share-Based Compensation Expense
$ 65.0 
$ 49.0 
Cost of Revenues, Product [Member]
 
 
Stock Based Compensation Expense Recorded in Cost and Expense Categories
 
 
Share-Based Compensation Expense
1.1 
1.0 
Cost of Revenues, Service [Member]
 
 
Stock Based Compensation Expense Recorded in Cost and Expense Categories
 
 
Share-Based Compensation Expense
5.2 
3.9 
Research and Development Expense [Member]
 
 
Stock Based Compensation Expense Recorded in Cost and Expense Categories
 
 
Share-Based Compensation Expense
25.8 
22.3 
Selling and Marketing Expense [Member]
 
 
Stock Based Compensation Expense Recorded in Cost and Expense Categories
 
 
Share-Based Compensation Expense
21.9 
13.2 
General and Administrative Expense [Member]
 
 
Stock Based Compensation Expense Recorded in Cost and Expense Categories
 
 
Share-Based Compensation Expense
$ 11.0 
$ 8.6 
Employee Benefit Plans, Share Based Compensation by Share Based Payment Award Types (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Dec. 31, 2011
Share-based Compensation Expense by Award Type
 
 
 
Share-Based Compensation Expense, Total
$ 65.0 
$ 49.0 
 
Employee Benefit Textuals [Abstract]
 
 
 
Employee Contribution Matched in Percent
25.00% 
 
 
Matching Contributions to Plan
6.6 
5.1 
 
Deferred Compensation Liability
11.9 
 
9.3 
Stock Options [Member]
 
 
 
Share-based Compensation Expense by Award Type
 
 
 
Share-Based Compensation Expense, Total
17.7 
19.7 
 
Employee Benefit Textuals [Abstract]
 
 
 
Unrecognized Compensation Cost Related to Unvested Stock Options - Adjusted for Forfeitures
98.4 
 
 
Weighted Average Period that Unrecognized Compensation Cost Will be Recognized (years)
2.6 
 
 
RSU's and PSA's
 
 
 
Share-based Compensation Expense by Award Type
 
 
 
Share-Based Compensation Expense, Total
41.6 
23.4 
 
Employee Benefit Textuals [Abstract]
 
 
 
Unrecognized Compensation Cost Related to Unvested Stock Options - Adjusted for Forfeitures
353.7 
 
 
Weighted Average Period that Unrecognized Compensation Cost Will be Recognized (years)
2.4 
 
 
Assumed Restricted Stock Units [Member]
 
 
 
Share-based Compensation Expense by Award Type
 
 
 
Share-Based Compensation Expense, Total
0.2 
0 
 
Employee Stock Purchase Plan [Member]
 
 
 
Share-based Compensation Expense by Award Type
 
 
 
Share-Based Compensation Expense, Total
5.5 
4.4 
 
Other Acquisition Related Compensation [Member]
 
 
 
Share-based Compensation Expense by Award Type
 
 
 
Share-Based Compensation Expense, Total
$ 0 
$ 1.5 
 
Segments (Details) (USD $)
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Net Revenues [Abstract]
 
 
Total net revenues
$ 1,032,498,000 
$ 1,101,612,000 
Segment Operating Income [Abstract]
 
 
Total segment operating income
386,600,000 
498,200,000 
Corporate Unallocated Expenses
(263,100,000)1
(252,400,000)1
Amortization of purchased intangible assets
(7,300,000)2
(6,700,000)2
Share-based Compensation Expense
(65,000,000)
(49,000,000)
Share-based payroll tax expense
(400,000)
(8,000,000)
Restructuring and other charges
(2,039,000)
347,000 
Acquisition-related and other charges
(1,100,000)3
(5,100,000)3
Operating income
47,709,000 
177,393,000 
Other (expense) income, net
(24,431,000)
(6,462,000)
Income before income taxes and noncontrolling interest
23,278,000 
170,931,000 
PSD Segment [Member]
 
 
Net Revenues [Abstract]
 
 
Total net revenues
824,200,000 
898,600,000 
Segment Operating Income [Abstract]
 
 
Total segment operating income
304,700,000 
417,100,000 
Depreciation by Segment [Abstract]
 
 
Depreciation expense
28,200,000 
26,000,000 
SSD Segment [Member]
 
 
Net Revenues [Abstract]
 
 
Total net revenues
208,300,000 
203,000,000 
Segment Operating Income [Abstract]
 
 
Total segment operating income
81,900,000 
81,100,000 
Depreciation by Segment [Abstract]
 
 
Depreciation expense
$ 7,900,000 
$ 8,000,000 
Segments, Geographical (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Net Revenues by Geographic Region [Line Items]
 
 
Total net revenues
$ 1,032,498 
$ 1,101,612 
United States
 
 
Net Revenues by Geographic Region [Line Items]
 
 
Total net revenues
468,400 
526,000 
Other Americas [Member]
 
 
Net Revenues by Geographic Region [Line Items]
 
 
Total net revenues
62,900 
55,600 
Total Americas [Member]
 
 
Net Revenues by Geographic Region [Line Items]
 
 
Total net revenues
531,300 
581,600 
Europe Middle East And Africa [Member]
 
 
Net Revenues by Geographic Region [Line Items]
 
 
Total net revenues
307,100 
299,900 
Asia Pacific [Member]
 
 
Net Revenues by Geographic Region [Line Items]
 
 
Total net revenues
$ 194,100 
$ 220,100 
Segments, Major Customers (Details)
3 Months Ended
Mar. 31, 2012
Customer Concentration Risk [Member]
Mar. 31, 2011
Customer Concentration Risk [Member]
Customer
Mar. 31, 2012
Property, Plant, and Equipment [Member]
Geographic Concentration Risk [Member]
UNITED STATES
Dec. 31, 2011
Property, Plant, and Equipment [Member]
Geographic Concentration Risk [Member]
UNITED STATES
Concentration Risk [Line Items]
 
 
 
 
Major Customers Revenues As Percentage Of Net Revenues
15.30% 
 
 
 
Number of Customers Accounting for Ten Percent or More of Net Revenues
 
0 
 
 
Concentration Risk, Percentage
 
 
80.00% 
80.00% 
Income Taxes (Details) (USD $)
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Income Tax Contingency [Line Items]
 
 
Income tax provision
$ 7,008,000 
$ 41,271,000 
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
 
 
Effective tax rate
30.10% 
24.10% 
Federal statutory rate
35.00% 
35.00% 
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations
3,400,000 
 
Possible decrease in gross unrecognized tax benefits within next 12 months
2,700,000 
 
Domestic Country [Member]
 
 
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
 
 
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions
2,900,000 
 
Foreign Country [Member]
 
 
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
 
 
Number of Ongoing Tax Examinations
2 
 
Interest and penalties recorded
$ 4,600,000 
 
Commitments and Contingencies (Details) (USD $)
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Dec. 31, 2011
Summarization of principal contractual obligations
 
 
 
Operating leases
$ 293,300,000 
 
 
Purchase commitments
136,400,000 
 
 
Long-term income taxes payable
111,400,000 
 
 
Senior Notes
1,000,000,000 
 
 
Interest Payable
849,700,000 
 
 
Other contractual obligations
90,800,000 
 
 
Total
2,481,600,000 
 
 
Commitments Textuals [Abstract]
 
 
 
Rent expense
15,700,000 
14,800,000 
 
Accrual for estimated carrying charges or obsolete materials charges
15,600,000 
 
 
Long-term debt
999,071,000 
 
999,034,000 
Long-term Debt, Gross
1,000,000,000 
 
 
Indemnity-related and service-related escrows
29,200,000 
 
 
Campus Build Out Commitments
47,600,000 
 
 
Principal Contractual Obligations Maturity Period Current Year [Member]
 
 
 
Summarization of principal contractual obligations
 
 
 
Operating leases
42,900,000 
 
 
Purchase commitments
136,400,000 
 
 
Long-term income taxes payable
0 
 
 
Senior Notes
0 
 
 
Interest Payable
23,500,000 
 
 
Other contractual obligations
81,000,000 
 
 
Total
283,800,000 
 
 
Principal Contractual Obligations Maturity Period Year One [Member]
 
 
 
Summarization of principal contractual obligations
 
 
 
Operating leases
47,000,000 
 
 
Purchase commitments
0 
 
 
Long-term income taxes payable
0 
 
 
Senior Notes
0 
 
 
Interest Payable
46,900,000 
 
 
Other contractual obligations
4,800,000 
 
 
Total
98,700,000 
 
 
Principal Contractual Obligations Maturity Period Year Two [Member]
 
 
 
Summarization of principal contractual obligations
 
 
 
Operating leases
41,300,000 
 
 
Purchase commitments
0 
 
 
Long-term income taxes payable
0 
 
 
Senior Notes
0 
 
 
Interest Payable
46,900,000 
 
 
Other contractual obligations
3,000,000 
 
 
Total
91,200,000 
 
 
Principal Contractual Obligations Maturity Period Year Three [Member]
 
 
 
Summarization of principal contractual obligations
 
 
 
Operating leases
34,800,000 
 
 
Purchase commitments
0 
 
 
Long-term income taxes payable
0 
 
 
Senior Notes
0 
 
 
Interest Payable
46,900,000 
 
 
Other contractual obligations
2,000,000 
 
 
Total
83,700,000 
 
 
Principal Contractual Obligations Maturity Period Year Four [Member]
 
 
 
Summarization of principal contractual obligations
 
 
 
Operating leases
26,900,000 
 
 
Purchase commitments
0 
 
 
Long-term income taxes payable
0 
 
 
Senior Notes
300,000,000 
 
 
Interest Payable
41,900,000 
 
 
Other contractual obligations
0 
 
 
Total
368,800,000 
 
 
Principal Contractual Obligations Maturity Period After Year Four [Member]
 
 
 
Summarization of principal contractual obligations
 
 
 
Operating leases
100,400,000 
 
 
Purchase commitments
0 
 
 
Long-term income taxes payable
0 
 
 
Senior Notes
700,000,000 
 
 
Interest Payable
643,600,000 
 
 
Other contractual obligations
0 
 
 
Total
1,444,000,000 
 
 
Principal Contractual Obligations Other [Member]
 
 
 
Summarization of principal contractual obligations
 
 
 
Operating leases
0 
 
 
Purchase commitments
0 
 
 
Long-term income taxes payable
111,400,000 
 
 
Senior Notes
0 
 
 
Interest Payable
0 
 
 
Other contractual obligations
0 
 
 
Total
111,400,000 
 
 
Fixed Rate Note Due 2016 [Member]
 
 
 
Commitments Textuals [Abstract]
 
 
 
Long-term Debt, Gross
300,000,000 
 
 
Debt Instrument, Interest Rate, Stated Percentage
3.10% 
 
 
Fixed Rate Note Due 2021 [Member]
 
 
 
Commitments Textuals [Abstract]
 
 
 
Long-term Debt, Gross
300,000,000 
 
 
Debt Instrument, Interest Rate, Stated Percentage
4.60% 
 
 
Fixed Rate Note Due 2041 [Member]
 
 
 
Commitments Textuals [Abstract]
 
 
 
Long-term Debt, Gross
$ 400,000,000 
 
 
Debt Instrument, Interest Rate, Stated Percentage
5.95% 
 
 
Commitments and Contingencies, Guarantees (Details) (Guarantees and standby letters of credit, USD $)
In Millions, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Guarantees and standby letters of credit
 
 
Guarantor Obligations [Line Items]
 
 
Guarantor obligations, current carrying value
$ 19.3 
$ 19.9 
Subsequent Events (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended 1 Months Ended
Mar. 31, 2012
Mar. 31, 2011
May 9, 2012
Repurchase of Equity [Member]
Subsequent Event [Line Items]
 
 
 
Stock Repurchased During Period, Shares
 
 
2.2 
Stock Repurchased During Period, Value
 
 
$ 44.0 
Common Stock Average Purchase Price
 
 
$ 20.09 
Stock Repurchased and Retired During Period, Shares
2.4 
4.8 
2.0 
Stock Repurchase Program, Remaining Authorized Repurchase Amount
 
 
$ 122.2