Income Taxes - Income Tax Reconciliation (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Federal tax at statutory rate	$ (73,849)	$ (29,657)	$ (39,298)
State and local taxes	945	1,370	7,435
Deferred tax assets generated in current year not benefited	(4,916)	(3,311)	(4,777)
Foreign income tax rate differential	30,387	20,002	21,392
Non-deductible expenses	(14,252)	(1,274)	(2,525)
Stock-based compensation expense	(3,922)	(4,496)	(3,273)
Change in valuation allowance	710	1,655	1,362
Foreign financing benefits	2,592	2,981	4,303
Uncertain tax positions reserve	(3,191)	(463)	2,952
Statutory rate change due to REIT conversion	45,823	(324,142)	0
Other, net	(3,551)	(8,124)	(3,727)
Provision for income taxes	$ (23,224)	$ (345,459)	$ (16,156)