Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets:
Cash and due from banks	$ 511,173	$ 617,569
Interest-bearing deposits	7,868,694	7,985,057
Resell agreements	84,650	84,650
Total cash and cash equivalents	8,464,517	8,687,276
Securities held to maturity, net of allowance for credit losses of $310 at both March 31, 2024 and December 31, 2023	3,600,729	3,619,428
Securities available for sale, at estimated fair value	15,181,583	16,578,371
Trading account securities	39,645	31,717
Loans, net of unearned discounts	19,388,206	18,824,251
Less: Allowance for credit losses on loans	(250,297)	(245,996)
Net loans	19,137,909	18,578,255
Premises and equipment, net	1,210,897	1,190,033
Accrued interest receivable and other assets	1,870,144	2,159,958
Total assets	49,505,424	50,845,038
Liabilities:
Non-interest-bearing demand deposits	13,754,985	14,926,094
Interest-bearing deposits	27,051,501	26,994,474
Total deposits	40,806,486	41,920,568
Federal funds purchased	41,200	14,200
Repurchase agreements	3,943,207	4,127,188
Junior subordinated deferrable interest debentures, net of unamortized issuance costs	123,141	123,127
Subordinated notes, net of unamortized issuance costs	99,530	99,491
Accrued interest payable and other liabilities	853,680	844,017
Total liabilities	45,867,244	47,128,591
Shareholders’ Equity:
Preferred stock, par value $0.01 per share; 10,000,000 shares authorized; 150,000 Series B shares ($1,000 liquidation preference) issued at March 31, 2024 and December 31, 2023	145,452	145,452
Common stock, par value $0.01 per share; 210,000,000 shares authorized; 64,404,582 shares issued at both March 31, 2024 and December 31, 2023	644	644
Additional paid-in capital	1,059,547	1,055,809
Retained earnings	3,726,559	3,657,688
Accumulated other comprehensive income (loss), net of tax	(1,276,283)	(1,119,219)
Treasury stock, at cost; 153,312 shares at March 31, 2024 and 219,295 at December 31, 2023	(17,739)	(23,927)
Total shareholders’ equity	3,638,180	3,716,447
Total liabilities and shareholders’ equity	$ 49,505,424	$ 50,845,038