Operating Leases - ROU asset and operating lease liability (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
ROU asset	$ 29,421	$ 31,398
Operating lease liability	$ 31,072	$ 33,095
ROU asset, balance sheet line item	Other Assets	Other Assets
Operating lease liability, balance sheet line item	Other liabilities	Other liabilities