Leases - Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 4,797	$ 5,470
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets
Operating lease liabilities	$ 4,827	$ 5,479
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities