Leases - Quantitative Lease Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Cash payments for operating leases	$ 632	$ 824
Cash payments for finance leases	130	392
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 0	$ 3,182