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Components of Income Tax Expense (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:
Federal	$ 12,285	$ 17,448	$ 6,070
State	3,007	2,528	1,275
Foreign	1,101	1,027	535
Deferred:
Federal	2,213	(590)	4,691
State	310	(387)	584
Total income tax expense (benefit)	$ 18,916	$ 20,026	$ 13,155

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 federal 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.