Condensed Financial Information Of Parent Company Condensed Financial Information Of Parent Company (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Condensed Financial Statements, Captions [Line Items]
Other assets	$ 913,954	$ 1,131,249
Assets	33,542,864	38,534,064
Long-Term Debt	1,391,814	2,911,322
Total liabilities	30,042,915	35,143,299
Stockholders' Equity Attributable to Parent Only	3,499,949	3,390,765	$ 3,950,531	$ 3,999,630
Total liabilities and stockholders' equity	33,542,864	38,534,064
Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Cash	192,255	285,758
Investments In Consolidated Banking Subsidiaries	3,570,039	3,384,784
Other assets	134,799	134,822
Assets	3,897,093	3,805,364
Long-Term Debt	172,976	169,906
Subordinated debt	214,709	213,171
Other Liabilities	9,459	31,522
Total liabilities	397,144	414,599
Stockholders' Equity Attributable to Parent Only	3,499,949	3,390,765
Total liabilities and stockholders' equity	$ 3,897,093	$ 3,805,364