Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating cash flows from finance leases	$ 6	$ 10
Operating cash flows from operating leases	4,487	4,507
Financing cash flows from finance leases	$ 88	$ 122