Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands			12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease cost			$ 6,589	$ 5,437
Finance lease cost
Amortization of lease expense	$ 400	$ 300	105	102
Interest on lease liabilities			14	17
Sublease income			(784)	(415)
Total lease cost			$ 5,924	$ 5,141