Income Taxes - Schedule of Income Tax Expense (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current provision:
Federal	$ 38,881	$ 35,089	$ 9,111
State	13,996	15,910	3,948
Current provision, total	52,877	50,999	13,059
Deferred provision(benefit):
Federal	(3,260)	(10,102)	17,732
State	(950)	(3,484)	8,280
Deferred provision (benefit), total	(4,210)	(13,586)	26,012
Provision for income taxes	$ 48,667	$ 37,413	$ 39,071

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 federal income 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.