Income Taxes - Schedule of Effective Income Tax Rate (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Computed "expected" tax provision (benefit)	$ (100,000)	$ 6,700,000	$ (800,000)
Change in income tax resulting from:
State taxes, net of federal benefit	(8,400,000)	1,200,000	400,000
Foreign taxes	200,000	300,000	600,000
Change in valuation allowance	(126,000,000)	(2,200,000)	5,600,000
Other	200,000	100,000
Total provision (benefit) for taxes	$ (134,137,000)	$ 6,112,000	$ 5,790,000