Income Taxes - Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Provision for Income Taxes	$ 15,677	$ 20,402	$ 51,042	$ 60,253
Effective Income Tax Rate Reconciliation, Percent	23.50%	28.00%	24.50%	20.90%
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount			$ (100)	$ 12,176
Effective Income Tax Rate Reconciliation, ASU 2016-09 Benefit for Stock Compensation, Percent			(0.05%)	4.00%
Increase (Decrease) In Deferred Tax Assets Associated With Changes In Unrealized Gain Loss On Marketable Securities In Accumulated Other Comprehensive Income Loss			$ 525	$ 219
Increase (Decrease) In Deferred Tax Assets Associated With Changes In Foreign Currency Translation Adjustment Gain Loss In Accumulated Other Comprehensive Income Loss			1,244	$ 1,333
Unrecognized Tax Benefits	$ 376		376
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	306		306
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	15		15
Unrecognized Tax Benefits, Income Tax Penalties Accrued	1		1
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	118
Unrecognized Tax Benefits From Lapse in Statute of Limitations That Impacted Effective Tax Rate	96
Unrecognized Tax Benefits, Interest on Income Taxes Expense	(42)		(42)
Unrecognized Tax Benefits, Income Tax Penalties Expense	$ (3)		$ (3)