Income Taxes - Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current:
Federal	$ (950)	$ (1,981)	$ (11,525)
State	181	120	8
International	2,738	1,966	1,619
Deferred:
Federal	(713)	0	25,722
State	0	0	8,249
International	(9,372)	(512)	380
Total provision for (benefit from) income taxes	$ (8,116)	$ (407)	$ 24,453