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Components of Income Tax Expense (Benefit) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Current tax provision (benefit)	$ 3,712	$ 6,910	$ (7,144)
Deferred tax benefit	(5,702)	(66,568)	(22,083)
Income tax benefit	$ (1,990)	$ (59,658)	$ (29,227)

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

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