Leases - Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Operating Leases
2021 (Excluding the nine months ended September 30, 2021)	$ 1,291
2022	4,296
2023	3,432
2024	2,641
2025	2,354
Thereafter	4,090
Total future minimum lease payments	18,104
Less - amount representing interest	2,101
Operating Lease, Liability, Total	16,003
Less - current lease obligations	3,970	$ 4,989
Long-term lease obligations	12,033	14,537
Finance Leases
2021 (excluding the nine months ended September 30, 2021)	656
2022	3,492
2023	2,596
2024	2,036
2025	1,430
Thereafter	3,035
Total future minimum lease payments	13,245
Less - amount representing interest	1,513
Present value of future minimum lease payments	11,732
Less - current lease obligations	1,408	3,901
Long-term lease obligations	$ 10,324	$ 8,376