Condensed Financial Information Of Parent Company Condensed Financial Information Of Parent Company (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Other assets	$ 1,496,630	$ 1,083,992
Assets	41,228,936	40,443,344
Subordinated debt	867,100
Total liabilities	37,278,405	36,443,714
Stockholders' Equity Attributable to Parent Only	3,950,531	3,999,630	$ 3,594,951	$ 4,954,697
Total liabilities and stockholders' equity	41,228,936	40,443,344
Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Cash	351,181	176,923
Investments In Consolidated Banking Subsidiaries	3,640,891	3,845,653
Other assets	98,071	122,324
Assets	4,090,143	4,144,900
Subordinated debt	135,055	135,055
Other Liabilities	4,557	10,215
Total liabilities	139,612	145,270
Stockholders' Equity Attributable to Parent Only	3,950,531	3,999,630
Total liabilities and stockholders' equity	$ 4,090,143	$ 4,144,900