Parent Holding Company Information (Condensed) - Condensed Statements of Financial Condition (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets
Cash on hand and in banks	$ 300,194	$ 198,087
Interest bearing cash deposits	101,801	239,599
Cash and cash equivalents	401,995	437,686
Other assets	181,244	120,459
Total assets	26,635,375	25,940,645
Liabilities and Stockholders’ Equity
Subordinated debentures	132,782	132,620
Other liabilities	225,193	225,857
Total liabilities	23,792,070	22,763,023
Common stock	1,108	1,107
Paid-in capital	2,344,005	2,338,814
Retained earnings	966,984	810,342
Accumulated other comprehensive (loss) income	(468,792)	27,359
Total stockholders’ equity	2,843,305	3,177,622	$ 2,307,041	$ 1,960,733
Total liabilities and stockholders’ equity	26,635,375	25,940,645
Parent Company
Assets
Cash on hand and in banks	18,491	27,945
Interest bearing cash deposits	57,193	91,361
Cash and cash equivalents	75,684	119,306
Other assets	26,864	22,218
Investment in subsidiaries	2,882,849	3,188,210
Total assets	2,985,397	3,329,734
Liabilities and Stockholders’ Equity
Dividends payable	540	11,520
Subordinated debentures	132,782	132,620
Other liabilities	8,770	7,972
Total liabilities	142,092	152,112
Common stock	1,108	1,107
Paid-in capital	2,344,005	2,338,814
Retained earnings	966,984	810,342
Accumulated other comprehensive (loss) income	(468,792)	27,359
Total stockholders’ equity	2,843,305	3,177,622
Total liabilities and stockholders’ equity	$ 2,985,397	$ 3,329,734