CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Assets
Cash and due from banks	$ 291,360	$ 246,716
Interest-bearing deposits in other banks	657,574	1,011,753
Available-for-sale, at fair value (amortized cost: $3,673,396 as of September 30, 2022 and $8,560,733 as of December 31, 2021)	3,289,160	8,428,032
Held-to-maturity, at amortized cost (fair value: $3,960,713 as of September 30, 2022 and nil as of December 31, 2021)	4,406,143
Loans held for sale	361	538
Loans and leases	13,700,374	12,961,999
Less: allowance for credit losses	148,163	157,262
Financing Receivable, after Allowance for Credit Loss, Total	13,552,211	12,804,737
Premises and equipment, net	299,179	318,448
Other real estate owned and repossessed personal property	139	175
Accrued interest receivable	68,545	63,158
Bank-owned life insurance	470,202	471,819
Goodwill	995,492	995,492
Mortgage servicing rights	6,866	8,302
Other assets	833,040	643,240
Total assets	24,870,272	24,992,410
Deposits:
Interest-bearing	12,774,645	12,422,283
Noninterest-bearing	9,317,093	9,393,863
Total deposits	22,091,738	21,816,146
Retirement benefits payable	133,981	134,491
Other liabilities	443,902	384,861
Total liabilities	22,669,621	22,335,498
Commitments and contingent liabilities (Note 11)
Stockholders' equity
Common stock ($0.01 par value; authorized 300,000,000 shares; issued/outstanding: 140,958,520 / 127,357,680 as of September 30, 2022; issued/outstanding: 140,581,715 / 127,502,472 as of December 31, 2021)	1,410	1,406
Additional paid-in capital	2,535,601	2,527,663
Retained earnings	690,433	604,534
Accumulated other comprehensive loss, net	(658,756)	(121,693)
Treasury stock (13,600,840 shares as of September 30, 2022 and 13,079,243 shares as of December 31, 2021)	(368,037)	(354,998)
Total stockholders' equity	2,200,651	2,656,912
Total liabilities and stockholders' equity	$ 24,870,272	$ 24,992,410