Leases - Schedule of Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Amortization of leased assets	$ 156	$ 162	$ 314	$ 324
Interest of lease liabilities	12	22	26	47
Operating lease cost	1,897	1,960	3,812	3,919
Total lease cost before subleases	2,065	2,144	4,152	4,290
Sublease income	(1,344)	(1,363)	(2,688)	(2,764)
Total lease cost, net	$ 721	$ 781	$ 1,464	$ 1,526