Leases - Additional Information (Details) - USD ($)	3 Months Ended		15 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2019	Jan. 01, 2019
Leases [Line Items]
Right-of-use assets	$ 61,593,000		$ 61,593,000	$ 62,466,000	$ 5,580,000	$ 5,580
Lease liability	53,129,000		53,129,000	53,454,000	$ 5,897,000	5,897,000
Retained earnings	$ (261,637,000)		$ (261,637,000)	$ (250,548,000)		$ 317,000
Lessor, operating lease options to renew	true
Operating lease expense	$ 4,872,000	$ 2,204,000
Minimum
Leases [Line Items]
Lessee incremental borrowing rate percentage			10.25%
Maximum
Leases [Line Items]
Lessee incremental borrowing rate percentage			17.00%