Leases - Schedule of Operating Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Operating lease cost (gross lease expense)	$ 3,253	$ 3,414	$ 6,644	$ 6,878
Variable lease costs	1,106	1,414	2,152	3,017
Sublease income (including reimbursed expenses)	$ 1,309	$ 1,162	$ 2,565	$ 2,579