Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 7,721	$ 16,227	$ 19,908	$ 21,944
Effective tax rate	21.00%	22.60%	30.50%	21.50%
Net discrete tax benefits	$ (1,863)		$ 2,522
Additions for tax positions of the current year			4,939
Decrease for tax positions of the current year	(892)		(1,347)
Settlements for tax positions of prior years	(971)		(3,858)
Transition tax unrepatriated foreign earnings			1,661
Additions for tax positions of prior year			670
Operating Loss Carryforwards [Line Items]
Valuation allowances	23,089		23,089
Recognition of unrecognized tax benefit upon which the effective rate would change	10,957		10,957
United States
Operating Loss Carryforwards [Line Items]
Valuation allowances	1,402		1,402
Foreign
Operating Loss Carryforwards [Line Items]
Valuation allowances	$ 21,687		$ 21,687