Income Taxes - Summary of Components of Provision (Benefit) for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current
Federal	$ (8,001)	$ 466	$ 12,733
State	(476)	(150)	1,141
International	11,705	6,458	477
Total Current	3,228	6,774	14,351
Deferred
Federal	(14,448)	8,024	647
State	(3,390)	1,882	73
International	581	4,167	(3,405)
Total Deferred	(17,257)	14,073	(2,685)
Total Provision (Benefit) for Income Taxes	$ (14,029)	$ 20,847	$ 11,666