Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Taxes [Line Items]
Effective Income Tax Rate		35.00%
Tax Cuts and Jobs Act of 2017, Accounting Complete		false
Tax cuts and jobs act of 2017 remeasurement of deferred tax assets and liabilities provisional income tax expenses benefit		$ 15,000,000
Tax Cuts and Jobs Act of 2017, one-time transition tax on certain unremitted foreign earnings		20,900,000
Decrease in deferred tax assets valuation allowance		1,900,000
Deferred tax assets tax credit carry forwards alternative minimum tax		3,100,000
Unrecognized tax benefit		27,237,000	$ 24,278,000	$ 21,079,000	$ 14,780,000
Net unrecognized tax benefits that, if recognized, would favorably impact the effective income tax rate		25,900,000	23,200,000
Decrease in unrecognized tax benefits due to the expiration of statutes of limitations and the settlement of various audits		100,000
Accrued interest and penalties related to income tax liabilities		1,200,000	1,900,000
Aggregate amount of interest and penalties expenses (benefit) recorded in the statement of operations		(800,000)	(200,000)	$ (100,000)
Undistributed earning of foreign subsidiaries		355,000,000
Other Noncurrent Liabilities
Income Taxes [Line Items]
Unrecognized tax benefit		21,500,000	$ 17,600,000
Scenario, Forecast [Member]
Income Taxes [Line Items]
Effective Income Tax Rate	21.00%
Foreign Entities
Income Taxes [Line Items]
Deferred tax assets operating loss carry forwards subject to expiration		39,800,000
Deferred tax assets operating loss carry forwards		$ 6,200,000
Deferred tax assets operating loss carry forwards, expiration period		9 years
Valuation allowance against the tax benefit associated with NOLs		$ 39,100,000
Deferred tax assets operating loss carry forwards subject to expiration		26,100,000
Valuation allowance against tax credit		$ 0
Tax credits expiration year		2022
Foreign Entities | Earliest Tax Year [Member]
Income Taxes [Line Items]
Tax years open for audit		2005
Foreign Entities | Latest Tax Year [Member]
Income Taxes [Line Items]
Tax years open for audit		2016
Other Foreign Jurisdiction [Member]
Income Taxes [Line Items]
Deferred tax assets operating loss carry forwards, expiration period		7 years
Deferred tax assets operating loss carry forwards subject to expiration		$ 1,900,000
Valuation allowance against tax credit		1,600,000
Valuation allowance against the tax benefit associated with NOLs		1,600,000
Domestic Federal
Income Taxes [Line Items]
Deferred tax assets operating loss carry forwards subject to expiration		$ 104,600,000
Deferred tax assets operating loss carry forwards expiration year		2018
Valuation allowance against the tax benefit associated with NOLs		$ 4,700,000
Tax credits expiration year		2019
General business tax credit carryforwards		$ 11,000,000
State and Local Jurisdiction
Income Taxes [Line Items]
Deferred tax assets operating loss carry forwards subject to expiration		$ 6,200,000
Deferred tax assets operating loss carry forwards expiration year		2018
Valuation allowance against the tax benefit associated with NOLs		$ 1,000,000
Tax credits expiration year		2022
General business tax credit carryforwards		$ 700,000
India Tax Authority
Income Taxes [Line Items]
Income tax examination description		The Company's Indian income tax returns covering fiscal years 2005 and 2010 through 2014 are under audit by the Indian tax authority.