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Income Taxes - Components of the Company's Income Tax Expense (Benefit) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current taxes:
Federal	$ 23,326	$ 24,928	$ 26,489
State	3,682	2,865	3,869
Deferred taxes	(483)	(689)	(5,282)
Total income taxes	$ 26,525	$ 27,104	$ 25,076

Amount of current federal tax expense (benefit) pertaining to 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.