Income Taxes - Schedule of Provision for Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Current:
Federal	$ 5,852	$ 10,887	$ 18,375	$ 18,653
State and local	6,283	3,917	9,694	6,827
Foreign	5,621	3,741	10,440	7,188
Total current provision	17,756	18,545	38,509	32,668
Deferred:
Federal	1,275	1,475	1,877	3,380
State and local	302	266	403	618
Foreign	(568)	263	(680)	769
Total deferred provision	1,009	2,004	1,600	4,767
Provision for income taxes	$ 18,765	$ 20,549	$ 40,109	$ 37,435
Effective tax rate	21.80%	19.70%	21.40%	19.10%