Employee Benefit Plan (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Company's contributions under 401(k) retirement savings plan	$ 8.7	$ 8.2	$ 7.7
Deferred Compensation Arrangement With Individual, Tranche Two
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Deferred compensation arrangement vesting percentage	100.00%
Deferred compensation arrangement, service period	3 years
Deferred Compensation Arrangement With Individual, Tranche One
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Deferred compensation arrangement vesting percentage	50.00%
Deferred Compensation Arrangement With Individual, Tranche One | Minimum
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Deferred compensation arrangement, service period	2 years
Deferred Compensation Arrangement With Individual, Tranche One | Maximum
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Deferred compensation arrangement, service period	3 years