Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Contingency [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		35.00%	35.00%	35.00%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount		$ 17,900
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount		1,900
Deferred tax assets, operating loss carryforwards, foreign		25,200	$ 13,200
Deferred tax assets, valuation allowance		1,906	1,625
Deferred tax assets, operating loss carryforwards, state and local		600
Tax credit carryforwards		4,600
Significant change in unrecognized tax benefits is reasonably possible, amount of unrecorded benefit		800
Unrecognized tax benefits that would impact effective tax rate		11,700
Penalty expense		1,100	800	$ 300
Interest expense		400	100
Liability for penalties		3,900	2,700
Liability for interest		3,600	2,800
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount		16,000
Accrued income taxes, long-term		14,500
Subject To Expiration [Member]
Income Tax Contingency [Line Items]
Tax credit carryforwards		4,000
Subject To Utilization Limitations [Member]
Income Tax Contingency [Line Items]
Tax credit carryforwards		2,300
Not Subject To Expiration [Member]
Income Tax Contingency [Line Items]
Tax credit carryforwards		600
Foreign Country [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards		66,400
Federal Domestic [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards		16,700
Operating Loss Carryforward With No Expiration Date [Member] | Foreign Country [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards		29,600
Subject To Expiration [Member] | Foreign Country [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards		$ 36,800
Earliest Tax Year [Member]
Income Tax Contingency [Line Items]
Tax credit carryforward, expiration date		Jan. 01, 2019
Years open to examination		2014
Earliest Tax Year [Member] | Foreign Country [Member]
Income Tax Contingency [Line Items]
Operating loss carryforwards, expiration date		Jan. 01, 2019
Earliest Tax Year [Member] | Federal Domestic [Member]
Income Tax Contingency [Line Items]
Operating loss carryforwards, expiration date		Jan. 01, 2024
Earliest Tax Year [Member] | State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Operating loss carryforwards, expiration date		Jan. 01, 2025
Latest Tax Year [Member]
Income Tax Contingency [Line Items]
Tax credit carryforward, expiration date		Dec. 31, 2037
Years open to examination		2017
Latest Tax Year [Member] | Foreign Country [Member]
Income Tax Contingency [Line Items]
Operating loss carryforwards, expiration date		Dec. 31, 2034
Latest Tax Year [Member] | Federal Domestic [Member]
Income Tax Contingency [Line Items]
Operating loss carryforwards, expiration date		Dec. 31, 2034
Latest Tax Year [Member] | State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Operating loss carryforwards, expiration date		Dec. 31, 2035
Valuation Allowance, Operating Loss Carryforwards [Member] | Foreign Country [Member]
Income Tax Contingency [Line Items]
Deferred tax assets, valuation allowance		$ 25,200	$ 13,200
Maximum [Member]
Income Tax Contingency [Line Items]
Effective Income Tax Rate Reconciliation, Deduction, Percent		50.00%
Scenario, Forecast [Member]
Income Tax Contingency [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%