Income Taxes - Income Tax Expense (Benefit) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current Income Tax Expense Benefit Continuing Operations [Abstract]
U.S.		$ (204)	$ 177
State		(357)	2,777
Foreign	6	(163)	173
Total current income tax expense (benefit)	6	(724)	3,127
Deferred
U.S.	(5,863)	(5,536)	13,223
State	691	(1,049)	224
Foreign	6	261
Total deferred income tax expense	(5,166)	(6,324)	13,447
Total income tax expense (benefit)	$ (5,160)	$ (7,048)	$ 16,574