Income Taxes - Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Provision for Income Taxes	$ 21,814	$ 32,030	$ 35,365	$ 39,851
Effective Income Tax Rate Reconciliation, Percent	24.50%	24.80%	25.00%	18.50%
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount			$ 103	$ 12,130
Effective Income Tax Rate Reconciliation, ASU 2016-09 Benefit for Stock Compensation, Percent			0.10%	6.00%
Increase (Decrease) In Deferred Tax Assets Associated With Changes In Unrealized Gain Loss On Marketable Securities In Accumulated Other Comprehensive Income Loss			$ 518	$ 205
Increase (Decrease) In Deferred Tax Assets Associated With Changes In Foreign Currency Translation Adjustment Gain Loss In Accumulated Other Comprehensive Income Loss			3,363	$ 262
Unrecognized Tax Benefits	$ 494		494
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	402		402
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations			118
Unrecognized Tax Benefits, Interest on Income Taxes Expense	16		16
Unrecognized Tax Benefits, Income Tax Penalties Accrued	$ 1		$ 1