Income Taxes - Schedule of Income Tax Provision (Benefit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current:
Federal	$ 8,461	$ 33,017	$ 43,652
Foreign	15,246	28,229	30,022
Total current	23,707	61,246	73,674
Deferred:
Federal	1,121	(1,611)	(5,916)
Foreign	(2,181)	(1,872)	2,910
Total deferred	(1,060)	(3,483)	(3,006)
Total	$ 22,647	$ 57,763	$ 70,668