Financing and Operating Leases - Lease Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Operating Leases
2021 (excluding the nine months ended June 30, 2021)	$ 747
2022	2,377
2023	2,250
2024	2,049
2025	1,477
Thereafter	3,706
Total operating lease payment	12,606
Less imputed interest	(2,791)
Total operating lease liabilities	9,815	$ 7,758
Financing Leases
2021 (excluding the six months ended June 30, 2021)	518
2022	2,136
2023	1,188
2024	390
2025	132
Thereafter	55
Total financing lease payment	4,419
Less imputed interest	(468)
Total financing lease liabilities	$ 3,951	$ 5,192