Income Taxes (Tables)

12 Months Ended

Dec. 31, 2011

Income Tax Expense (Benefit) [Abstract]

United States and Foreign Components of Income Before Income Taxes

The United States and foreign components of income before income taxes are as follows:

	2011		2010		2009
	(In thousands)
United States	$	176,824	$	124,337	$	16,434
Foreign	253,673		209,483		177,458
Total	$	430,497	$	333,820	$	193,892

Components of the Provision for Income Taxes

The components of the provision for income taxes are as follows:

	2011			2010			2009
	(In thousands)
Current:
Federal	$	50,022		$	69,540		$	25,065
Foreign	29,169			25,467			21,747
State	11,905			9,048			6,913
Total current	91,096			104,055			53,725
Deferred	(16,229		)	(46,676		)	(50,850		)
Total provision	$	74,867		$	57,379		$	2,875

Components of Deferred Tax Assets and Liabilities

The significant components of the Company’s deferred tax assets and liabilities consisted of the following:

	December 31,
	2011			2010
	(In thousands)
Deferred tax assets:
Accruals and reserves	$	31,191		$	24,191
Deferred revenue	25,365			19,377
Tax credits	60,331			71,442
Net operating losses	61,205			40,234
Other	8,580			3,495
Stock option compensation	38,834			27,314
Valuation allowance	(9,235		)	(13,999		)
Total deferred tax assets	216,271			172,054
Deferred tax liabilities:
Depreciation and amortization	(27,648		)	(2,684		)
Acquired technology	(78,456		)	(26,850		)
Prepaid expenses	(16,839		)	(12,479		)
Total deferred tax liabilities	(122,943		)	(42,013		)
Total net deferred tax assets	$	93,328		$	130,041

Reconciliation of The Company's Effective Tax Rate to The Statutory Federal Rate

A reconciliation of the Company’s effective tax rate to the statutory federal rate is as follows:

	Year Ended December 31,
	2011		2010		2009
Federal statutory taxes	35.0	%	35.0	%	35.0	%
State income taxes, net of federal tax benefit	1.7		3.3		3.6
Foreign operations	(14.5	)	(16.8	)	(24.1	)
Permanent differences	1.2		1.1		2.8
Tax credits	(7.1	)	(10.4	)	(23.9	)
Stock option compensation	0.1		(0.4	)	1.2
Change in accruals for uncertain tax positions	1.4		5.3		8.8
Other	(0.4	)	0.1		(1.9	)
	17.4	%	17.2	%	1.5	%

Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2011 and 2010 is as follows (in thousands):

Balance at January 1, 2010	$	48,165
Additions based on tax positions related to the current year	8,134
Additions for tax positions of prior years	15,629
Reductions related to the expiration of statutes of limitations	(1,838		)
Settlements	—
Balance at December 31, 2010	70,090
Additions based on tax positions related to the current year	8,656
Additions for tax positions of prior years	722
Reductions related to the expiration of statutes of limitations	(269		)
Settlements	—
Balance at December 31, 2011	$	79,199