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Components of Income Tax Expense Benefit (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Components Of Income Tax Expense Benefit [Line Items]
Current, Federal	$ 256,545	$ 254,021	$ 165,409
Current, Foreign	1,655	9,084	300
Current, State	28,490	39,076	22,901
Current, Total	286,690	302,181	188,610
Deferred, Federal and foreign	25,341	(21,408)	53,056
Deferred, State	3,278	(6,157)	5,800
Deferred, Total	28,619	(27,565)	58,856
Provision for income taxes	$ 315,309	$ 274,616	$ 247,466

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.