Loans and Allowance for Credit Losses Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total accruing TDRs	$ 29,492	$ 68,426
Non-accrual TDRs	55,945	35,755
Total TDRs	85,437	104,181
Real estate - commercial mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total accruing TDRs	3,464	28,451
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total accruing TDRs	1,857	6,982
Real estate - residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total accruing TDRs	11,948	18,602
Real estate - home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total accruing TDRs	12,218	14,391
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total accruing TDRs	$ 5	$ 0