Lease Obligations - Reconciliation of Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2021	$ 2,717
2022	2,698
2023	2,582
2024	2,222
2025	2,082
Thereafter	95,105
Total	$ 107,406
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities
Lease liabilities	$ 42,888
Undiscounted excess amount	64,518
Finance Lease, Liability, Payment, Due [Abstract]
2021	1,751
2022	1,759
2023	23,037
Total	26,547
Finance lease obligation	21,696	$ 21,804
Undiscounted excess amount	$ 4,851