Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Line Items]
Loss carryforwards	$ 639,147	$ 639,147
Tax credit carryforwards	60,591	60,591
Deferred income tax asset valuation allowances	74,125	74,125	$ 77,334
Excess tax benefit, amount	$ 4,300	$ 4,308	0	$ 0
Percentage greater than threshold of Income tax examination of uncertain tax positions that should be recognized	50.00%	50.00%
Net deferred income tax assets	$ 450,618	$ 450,618	450,085
Unrecognized tax benefits, end of period	109,347	109,347	118,099	100,357	$ 111,370
Amount of unrecognized tax benefits that would impact the effective tax rate if recognized	105,800	105,800
Recognized interest and penalties related to unrecognized tax benefits		2,000	0	(2,000)
Accrued interest and penalties related to unrecognized tax benefits	17,100	17,100	18,300
Amount of unrecognized tax benefits related to interest and penalties that would impact the effective tax rate if recognized	16,200	16,200
Reasonably possible changes to unrecognized tax benefits related to settlement of tax audits and/or expiration of statutes of limitations within the next twelve months	(11,000)	(11,000)
Net tax benefit		16,800	19,100	42,600
Cumulative amount of undistributed earnings of foreign subsidiaries that is intended to be indefinitely reinvested and for which no deferred US income taxes have been provided	7,000,000	7,000,000
Valuation Allowances Net Operating Losses and Tax Credit Carryforwards
Income Taxes [Line Items]
Deferred income tax asset valuation allowances	65,200	65,200
Valuation Allowance for Other Deferred Tax Assets
Income Taxes [Line Items]
Deferred income tax asset valuation allowances	$ 8,900	$ 8,900
Additional Paid-In Capital | New Accounting Pronouncement, Early Adoption, Effect | Accounting Standards Update 2016-09
Income Taxes [Line Items]
Cumulative effect of new accounting principle in period of adoption			$ (2,800)	$ 21,200