Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current income tax expense:
Federal	$ 8,428	$ 4,005	$ 690
State and local	606	(15)	495
Foreign	24,622	24,737	9,959
Total current income tax expense	33,656	28,727	11,144
Deferred income tax expense (benefit):
Federal	(3,051)	(576)	12
State and local	(183)	9	(95)
Foreign	3,123	(4,058)	36
Total deferred income tax expense	(111)	(4,625)	(47)
Total tax expense	$ 33,545	$ 24,102	$ 11,097