Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Valuation Allowance for Deferred Tax Assets [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Valuation allowance, Beginning balance	[1]	$ 150,384	$ 82,876	$ 6,057
Valuation allowance, Additions/Charges to Expense	[1]	(109,805)	71,826	80,536
Valuation allowance, Deductions/ Other	[1]	6,966	(4,318)	(3,717)
Valuation allowance, Ending balance	[1]	47,545	150,384	82,876
Valuation Allowance for Accounts Receivable [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Valuation allowance, Beginning balance		19,097	27,504	37,938
Valuation allowance, Additions/Charges to Expense		22,212	14,864	25,939
Valuation allowance, Deductions/ Other		(21,080)	(23,271)	(36,373)
Valuation allowance, Ending balance		$ 20,229	$ 19,097	$ 27,504

[1] Amounts include both continuing and discontinued operations gross deferred tax balances.