Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

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:

	2012		2011		2010
	(In thousands)
United States	$	200,802	$	176,824	$	124,337
Foreign	209,427		253,673		209,483
Total	$	410,229	$	430,497	$	333,820

Components of the Provision for Income Taxes

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

	2012			2011			2010
	(In thousands)
Current:
Federal	$	81,019		$	50,022		$	69,540
Foreign	30,059			29,169			25,467
State	17,395			11,905			9,048
Total current	128,473			91,096			104,055
Deferred:
Federal	(64,960		)	(8,631		)	(20,476		)
Foreign	1,409			(4,792		)	(5,349		)
State	(7,240		)	(2,806		)	(20,851		)
Total deferred	(70,791		)	(16,229		)	(46,676		)
Total provision	$	57,682		$	74,867		$	57,379

Summary of Deferred Tax Asset and Liability by Balance Sheet Classification [Table Text Block]

The following table presents the breakdown between current and non-current net deferred tax assets:

	December 31,
	2012			2011
	(In thousands)
Deferred tax assets - current	$	36,846		$	44,916
Deferred tax liabilities - current	(876		)	(119		)
Deferred tax assets- non current	43,097			67,479
Deferred tax liabilities - non current	(19,756		)	(18,948		)
Total net deferred tax assets	$	59,311		$	93,328

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,
	2012			2011
	(In thousands)
Deferred tax assets:
Accruals and reserves	$	36,128		$	31,191
Deferred revenue	41,820			25,365
Tax credits	43,657			60,331
Net operating losses	89,856			61,205
Other	8,452			8,580
Stock option compensation	54,852			38,834
Valuation allowance	(18,185		)	(9,235		)
Total deferred tax assets	256,580			216,271
Deferred tax liabilities:
Depreciation and amortization	(40,159		)	(27,648		)
Acquired technology	(140,017		)	(78,456		)
Prepaid expenses	(17,093		)	(16,839		)
Total deferred tax liabilities	(197,269		)	(122,943		)
Total net deferred tax assets	$	59,311		$	93,328

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,
	2012		2011		2010
Federal statutory taxes	35.0	%	35.0	%	35.0	%
State income taxes, net of federal tax benefit	1.9		1.7		3.3
Foreign operations	(10.2	)	(14.5	)	(16.8	)
Permanent differences	(2.0	)	1.2		1.1
Tax credits	(4.7	)	(7.1	)	(10.4	)
Stock option compensation	0.1		0.1		(0.4	)
Change in accruals for uncertain tax positions	(5.3	)	1.4		5.3
Other	(0.7	)	(0.4	)	0.1
	14.1	%	17.4	%	17.2	%

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, 2012 and 2011 is as follows (in thousands):

Balance at January 1, 2011	$	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
Additions based on tax positions related to the current year	2,459
Additions for tax positions of prior years	9,558
Reductions related to the expiration of statutes of limitations	(33,594		)
Settlements	(13,718		)
Balance at December 31, 2012	$	43,904