Leases - Schedule of Rent Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Operating lease expense	$ 768	$ 675	$ 2,420	$ 2,194
Variable and short-term lease expense	38	35	115	131
Rent expense	$ 806	$ 710	$ 2,535	$ 2,325