Consolidated Income Tax Expense (benefit) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current
Federal	$ 197	$ 0	$ 14
State	717	174	157
Foreign	130	141	0
Current, Total	1,044	315	171
Deferred
Federal	26,753	(46,378)	0
State	3,412	(10,871)	0
Foreign	(115)	(34)	0
Deferred, Total	30,089	(57,283)	0
Total consolidated expense (benefit)	$ 31,094	$ (56,968)	$ 171

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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