Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Contingency [Line Items]
Federal income tax rate		35.00%	35.00%	35.00%
Tax cuts and jobs act of 2017, change in tax rate, income tax expense (benefit)		$ (18,100)
Tax cuts and jobs act of 2017, change in tax rate, deferred income tax expense		39,000
Tax cuts and jobs act of 2017, reversal of valuation allowance		6,800
Tax cuts and jobs act of 2017, change in tax rate, deferred income tax benefit		18,100
Valuation allowances		7,405	$ 4,066
Research and development, tax credit		6,300	1,100	$ 1,500
Undistributed earnings of foreign subsidiaries		397,800
Gross unrecognized tax benefits		26,900	$ 14,200	$ 12,200	$ 14,900
Unrecognized tax benefits that would impact effective tax rate		16,800
Minimum [Member]
Income Tax Contingency [Line Items]
Gross unrecognized tax benefits balance may decrease within the next twelve months		0
Maximum [Member]
Income Tax Contingency [Line Items]
Gross unrecognized tax benefits balance may decrease within the next twelve months		600
United States - Federal [Member]
Income Tax Contingency [Line Items]
Tax Cuts and Jobs Act of 2017, incomplete accounting, transition tax for accumulated foreign earnings, provisional income tax expense		41,800
Net operating loss carryforwards		$ 47,900
Net operating loss carryforwards expiration year		2037
Tax credit carryforwards		$ 9,100
Tax credit carryforwards expiration year		2035
Foreign Tax Authority [Member]
Income Tax Contingency [Line Items]
Tax Cuts and Jobs Act of 2017, incomplete accounting, transition tax for accumulated foreign earnings, provisional income tax expense		$ 3,800
Net operating loss carryforwards		$ 3,700
Net operating loss carryforwards expiration year		2023
Tax credit carryforwards		$ 2,400
Tax credit carryforwards expiration year		2027
State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Tax Cuts and Jobs Act of 2017, incomplete accounting, transition tax for accumulated foreign earnings, provisional income tax expense		$ 300
Net operating loss carryforwards		188,400
Tax credit carryforwards		$ 200
Tax credit carryforwards expiration year		2018
State and Local Jurisdiction [Member] | Minimum [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards expiration year		2018
State and Local Jurisdiction [Member] | Maximum [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards expiration year		2037
Scenario Forcast [Member]
Income Tax Contingency [Line Items]
Federal income tax rate	21.00%