Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Assets
Cash and due from banks	$ 311,269	$ 436,952
Interest-bearing deposits in other financial institutions	511,116	156,693
Federal funds sold and securities purchased under agreements to resell	455	27,810
AFS investment securities, at fair value	3,381,607	2,742,025
HTM investment securities, net, at amortized cost	3,967,058	3,960,398
Equity securities	30,514	25,216
Federal Home Loan Bank and Federal Reserve Bank stocks, at cost	331,420	295,496
Residential loans held for sale	35,742	20,383
Commercial loans held for sale	33,490	0
Loans	29,207,072	28,799,569
Allowance for loan losses	(326,432)	(312,720)
Loans, net	28,880,640	28,486,849
Tax credit and other investments	269,269	276,773
Premises and equipment, net	375,540	376,906
Bank and corporate owned life insurance	677,328	676,530
Goodwill	1,104,992	1,104,992
Other intangible assets, net	47,079	49,282
Servicing Asset at Fair Value, Amount	74,479	77,351
Interest receivable	152,404	144,449
Other assets	518,115	547,621
Total assets	40,702,519	39,405,727
Liabilities and stockholders' equity
Noninterest-bearing demand deposits	7,328,689	7,760,811
Interest-bearing deposits	23,003,134	21,875,343
Total deposits	30,331,824	29,636,154
Federal funds purchased and securities sold under agreements to repurchase	208,398	585,139
Commercial paper	18,210	20,798
FHLB advances	4,986,138	4,319,861
Other long-term funding	544,103	248,071
Allowance for unfunded commitments	39,776	38,776
Accrued expenses and other liabilities	448,407	541,438
Total liabilities	36,576,856	35,390,237
Stockholders’ equity
Preferred equity	194,112	194,112
Common stock	1,752	1,752
Surplus	1,706,206	1,712,733
Retained earnings	2,973,354	2,904,882
Accumulated other comprehensive (loss)	(233,588)	(272,799)
Treasury stock, at cost	(516,173)	(525,190)
Total common equity	3,931,551	3,821,378
Total stockholders’ equity	4,125,663	4,015,490
Total liabilities and stockholders’ equity	$ 40,702,519	$ 39,405,727
Preferred shares authorized (par value $1.00 per share)	750,000	750,000
Preferred shares issued and outstanding	200,000	200,000
Common shares authorized (par value $0.01 per share)	250,000,000	250,000,000
Common shares issued	175,216,409	175,216,409
Common shares outstanding	150,885,862	150,444,019
Preferred shares, par value	$ 1.00	$ 1.00
Common shares, par value	$ 0.01	$ 0.01