CONSOLIDATED CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks	$ 125,818	$ 122,594
Interest-bearing deposits	352,695	126,061
Investment securities available for sale	1,794,208	1,976,661
Investment securities held to maturity, net of allowance for credit losses of $245 and $245 (fair value of $1,934,601 and $1,907,865)	2,263,181	2,287,127
Loans held for sale	9,408	9,094
Loans	12,241,461	12,003,894
Less: Allowance for credit losses - loans	(223,052)	(223,277)
Net loans	12,018,409	11,780,617
Premises and equipment	115,857	117,118
Federal Home Loan Bank stock	41,878	38,525
Interest receivable	85,515	85,070
Goodwill	712,002	712,002
Other intangibles	33,645	35,842
Cash surrender value of life insurance	309,090	308,311
Other real estate owned	7,777	6,431
Tax asset, deferred and receivable	103,070	111,222
Other assets	206,355	221,631
TOTAL ASSETS	18,178,908	17,938,306
Deposits:
Noninterest-bearing	2,964,355	3,173,417
Interest-bearing	11,738,932	11,209,328
Total Deposits	14,703,287	14,382,745
Borrowings:
Federal funds purchased	20	171,560
Securities sold under repurchase agreements	179,067	167,413
Federal Home Loan Bank advances	823,577	823,674
Subordinated debentures and other borrowings	151,312	151,298
Total Borrowings	1,153,976	1,313,945
Interest payable	11,979	7,530
Other liabilities	187,218	199,316
Total Liabilities	16,056,460	15,903,536
COMMITMENTS AND CONTINGENT LIABILITIES
STOCKHOLDERS' EQUITY
Common stock value	7,407	7,396
Additional paid-in capital	1,231,532	1,228,626
Retained earnings	1,057,298	1,012,774
Accumulated other comprehensive loss	(198,914)	(239,151)
Total Stockholders' Equity	2,122,448	2,034,770
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	18,178,908	17,938,306
Cumulative Preferred Stock
STOCKHOLDERS' EQUITY
Preferred stock value	125	125
Series A Preferred Stock
STOCKHOLDERS' EQUITY
Preferred stock value	$ 25,000	$ 25,000