Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Net operating loss carryforwards	$ 18,088
Valuation allowance	$ 31,833	$ 29,539
Increase in provisional income tax rate	13.70%
Transition tax for accumulated foreign earnings	$ 15,800	$ (15,800)
Cash and cash equivalents tax rate		15.50%
All other earnings, tax rate		8.00%
Accrued income tax liabilities related to TCJA		$ 32,600
Provisional income tax expense	1,600	13,600
Undistributed foreign earnings	453,000
Uncertain tax positions	18,648	18,323	$ 5,151	$ 0
Income tax penalties and interest accrued	1,100	600	600
Unrecognized tax benefits that would impact effective tax rate	8,200
Income taxes paid	$ 3,800	$ 8,400	$ 23,000