Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Assets
Cash	$ 261,261	$ 223,299
Interest-bearing deposits due from banks	13,681	12,651
Total cash and cash equivalents	274,942	235,950
Investment securities available for sale, at fair value (allowance for credit losses of $160 at March 31, 2023 and $310 at December 31, 2022)	1,029,127	1,054,312
Investment securities held to maturity (fair value of $762,720 at March 31, 2023 and $760,455 at December 31, 2022 and allowance for credit losses of $157 at March 31, 2023 and $107 at December 31, 2022)	902,498	923,308
Equity securities, at fair value	17,496	17,283
Federal Home Loan Bank and other membership bank stock, at cost	45,806	42,483
Loans held for sale	0	536
Loans, net of deferred fees	7,952,553	7,866,050
Less: Allowance for credit losses	71,403	70,264
Total loans, net	7,881,150	7,795,786
Premises and equipment, net	55,556	55,429
Operating lease right-of-use assets	19,329	20,052
Accrued interest receivable	34,220	33,374
Goodwill	271,829	271,829
Other intangible assets	8,572	9,088
Bank owned life insurance	157,761	156,985
Other assets	138,955	167,425
Total Assets	10,837,241	10,783,840
Liabilities
Deposits	8,536,943	8,567,471
Federal funds purchased and securities sold under agreements to repurchase	813,328	728,797
Other borrowings	25,000	25,000
Subordinated debentures	194,376	194,264
Operating lease liabilities	20,644	21,449
Other liabilities	120,370	138,272
Total Liabilities	9,710,661	9,675,253
Stockholders' Equity
Common stock, no par value; authorized 100,000,000 shares; issued 65,148,180 shares and outstanding 65,017,145 shares at March 31, 2023 and issued 65,002,738 shares and outstanding 64,871,703 shares at December 31, 2022	855,657	855,425
Retained earnings	339,680	329,375
Treasury shares, at cost, 131,035 shares at March 31, 2023 and December 31, 2022	(1,452)	(1,452)
Accumulated other comprehensive loss	(67,305)	(74,761)
Total Stockholders' Equity	1,126,580	1,108,587
Total Liabilities and Stockholders' Equity	$ 10,837,241	$ 10,783,840