Leases - Narratives (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Lessee, Lease, Description
Operating lease, right-of-use asset	$ 8,696,000		$ 8,984,000
Operating lease liability	2,217,000		$ 2,320,000
Impairment of right-of-use assets	$ 0	$ 7,434,000
Adjustment
Lessee, Lease, Description
Operating lease, right-of-use asset		6,200,000
Operating lease liability		$ 6,200,000