Income Taxes - Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Federal	$ (1,981)	$ (11,525)	$ (38,243)
State	120	8	93
International	1,966	1,619	1,988
Deferred:
Federal	0	25,722	(10,543)
State	0	8,249	3,023
International	(512)	380	(1,059)
Total provision for (benefit from) income taxes	$ (407)	$ 24,453	$ (44,741)