Leases Leases - Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets and Liabilities, Lessee [Abstract]
Operating lease right-of-use assets	$ 8,677	$ 11,722
Operating lease obligation - short-term	6,163	6,520
Operating lease obligation - long-term	5,224	9,061
Operating Lease, Liability	11,387	15,581
Finance lease right-of-use assets	3,902	3,189
Finance lease obligation - short-term	1,369	1,466
Finance lease obligation - long-term	2,536	1,702
Finance Lease, Liability	$ 3,905	$ 3,168