Parent Company Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Assets	$ 796,565	$ 787,966
Assets, Total	9,836,453	9,854,993
Subordinated Debt	189,147	188,667
Other Liabilities	131,265	135,043
Total liabilities	8,691,160	8,785,767
Total liabilities and shareholders’ equity	9,836,453	9,854,993
Parent Company
Cash	282,151	274,464	$ 243,531	$ 248,814
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	1,007,342	941,826
Debentures Receivable From Subsidiary Banks	25,000	25,000
Other Receivables	1,160	0
Other Investments	1,170	1,177
Other Assets	35,610	36,636
Assets, Total	1,352,433	1,279,103
Subordinated Debt	189,147	188,667
Other Liabilities	17,538	17,585
Total liabilities	207,140	209,877
Stockholders' Equity Attributable to Parent	1,145,293	1,069,226
Total liabilities and shareholders’ equity	1,352,433	1,279,103
Parent Company | Subsidiaries
Accounts Payable, Related Parties	$ 455	$ 3,625