Income Taxes - Income Tax Provision (benefit) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current income tax provision (benefit):
Federal		$ 1,745	$ 303	$ (2,738)
State		404	88	(32)
Total		2,149	391	(2,770)
Deferred income tax provision (benefit):
Federal		(11,182)	510	164
State		(1,516)	108	1
Total		(12,698)	618	165
Total income tax provision (benefit)	$ 10,900	$ (10,549)	$ 1,009	$ (2,605)

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.