CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets
Cash and due from banks	$ 185,015	$ 297,502
Interest-bearing deposits in other banks	1,554,882	229,122
Available-for-sale, at fair value (amortized cost: $2,558,675 as of December 31, 2023 and $3,549,599 as of December 31, 2022)	2,255,336	3,151,133
Held-to-maturity, at amortized cost (fair value: $3,574,856 as of December 31, 2023 and $3,814,822 as of December 31, 2022)	4,041,449	4,320,639
Loans held for sale	190
Loans and leases	14,353,497	14,092,012
Less: allowance for credit losses	156,533	143,900
Net loans and leases	14,196,964	13,948,112
Premises and equipment, net	281,461	280,355
Other real estate owned and repossessed personal property		91
Accrued interest receivable	84,417	78,194
Bank-owned life insurance	479,907	473,067
Goodwill	995,492	995,492
Mortgage servicing rights	5,699	6,562
Other assets	845,662	796,954
Total assets	24,926,474	24,577,223
Deposits:
Interest-bearing	13,749,095	12,824,383
Noninterest-bearing	7,583,562	8,864,646
Total deposits	21,332,657	21,689,029
Short-term borrowings	500,000	75,000
Retirement benefits payable	103,285	102,577
Other liabilities	504,466	441,612
Total liabilities	22,440,408	22,308,218
Commitments and contingent liabilities (Note 17)
Stockholders' equity
Common stock ($0.01 par value; authorized 300,000,000 shares; issued/outstanding: 141,340,539 / 127,618,761 as of December 31, 2023; issued/outstanding: 140,963,918 / 127,363,327 as of December 31, 2022)	1,413	1,410
Additional paid-in capital	2,548,250	2,538,336
Retained earnings	837,859	736,544
Accumulated other comprehensive loss, net	(530,210)	(639,254)
Treasury stock (13,721,778 shares as of December 31, 2023 and 13,600,591 shares as of December 31, 2022)	(371,246)	(368,031)
Total stockholders' equity	2,486,066	2,269,005
Total liabilities and stockholders' equity	$ 24,926,474	$ 24,577,223