Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Line Items]
Tax credit carryovers		$ 2,555	$ 34,469
Valuation allowance on deferred tax asset		85,370	30,768	$ 33,757	$ 49,562
Cumulative undistributed earnings not taxed domestically		1,100,000
Liabilities related to uncertain tax position	[1]	101,677	25,340
Unrecognized tax benefits, income tax penalties and interest accrued		6,500	300
Assets offsetting unrecognized tax benefits		50,900	22,100
Unrecognized tax benefits net of offsetting assets		44,000	2,900
Unrecognized tax benefits		95,715	$ 24,969	$ 29,143	$ 28,398
Maximum decrease in the liability related to uncertain tax positions		3,300
Domestic Country
Income Taxes [Line Items]
Tax credit carryovers		3,000
Valuation allowance on deferred tax asset		300
Net operating loss carryovers		529,900
Operating loss carryover, valuation allowance		507,900
Capital loss carryovers		16,900
Capital loss carryover, valuation allowance		15,800
State and Local Jurisdiction
Income Taxes [Line Items]
Capital loss carryovers		55,600
Capital loss carryover, valuation allowance		55,600
Foreign Country
Income Taxes [Line Items]
Valuation allowance on deferred tax asset		900
Net operating loss carryovers		393,600
Operating loss carryover, valuation allowance		$ 177,500

[1] See Note 20, “Income Taxes.”