Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets [Abstract]
Cash and Due from Banks	$ 160,477	$ 156,750
Money market instruments	57,791	32,978
Cash and cash equivalents	218,268	189,728
Debt Securities, Available-for-sale, Current	1,332,842	1,733,696
Other Investments and Securities, at Cost	96,302	87,091
Total investment securities	1,429,144	1,820,787
Total loans	7,476,221	7,141,891
Allowance for credit losses	83,745	85,379
Net loans	7,392,476	7,056,512
Bank Owned Life Insurance	231,631	220,072
Prepaid Expense, Current	165,879	153,579
Goodwill	159,595	159,595
Intangible Assets, Net (Excluding Goodwill)	4,652	5,975
Property, Plant and Equipment, Net	74,211	82,126
Amortization Method Qualified Affordable Housing Project Investments	62,703	60,968
Accrued Investment Income Receivable	39,236	34,704
Other real estate owned	983	1,354
Mortgage loan servicing rights	14,656	15,792
Operating Lease, Right-of-Use Asset	15,715	17,600
Other Assets, Miscellaneous	27,304	36,201
Other Assets	796,565	787,966
Assets, Total	9,836,453	9,854,993
Liabilities [Abstract]
Non-interest bearing	2,628,234	3,074,276
Interest-bearing Deposit Liabilities	5,414,332	5,160,439
Total deposits	8,042,566	8,234,715
Short-term Debt	328,182	227,342
Subordinated Debt	189,147	188,667
Debt, Current, Total	517,329	416,009
Operating Lease, Liability	16,605	19,291
Interest Payable	6,860	3,486
Qualified Affordable Housing Project Investments, Commitment	28,768	28,132
Off-Balance Sheet, Credit Loss, Liability	5,103	5,214
Other Liabilities Unclassified	73,929	78,920
Other Liabilities, Total	131,265	135,043
Total liabilities	8,691,160	8,785,767
Commitments and Contingencies
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Preferred Stock, Value, Issued	0	0
Common Stock, Value, Issued	463,280	462,404
Accumulated Other Comprehensive Income (Loss), Net of Tax	(66,191)	(102,394)
Retained Earnings (Accumulated Deficit)	903,877	847,235
Treasury Stock, Value	155,673	138,019
Total shareholders’ equity	1,145,293	1,069,226
Liabilities and Equity, Total	$ 9,836,453	$ 9,854,993