Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Assets [Abstract]
Cash and due from banks	$ 258,542	$ 208,080
Federal funds sold	8,026	5,793
Interest-earning deposits	367,901	468,029
Total cash and cash equivalents	634,469	681,902
Interest-earning deposits greater than 90 days	897	898
Securities available-for-sale	2,773,667	2,655,035
Securities held-to-maturity, net	1,055,495	1,074,957
Loans held-for-sale	418	928
Loans, before unearned loan fees	11,692,780	11,800,338
ACL on loans	(142,064)	(140,022)
Total loans, net	11,550,716	11,660,316
Other investments	81,944	80,884
Fixed assets, net	57,956	58,993
Goodwill	416,968	416,968
Intangible assets, net	19,525	21,175
Other assets	635,773	648,828
Total assets	17,227,828	17,300,884
Liabilities and Stockholders' Equity
Noninterest-bearing demand accounts	4,828,375	4,874,115
Interest-bearing demand accounts	3,395,680	3,537,334
Money market accounts	4,058,748	3,991,110
Savings accounts	551,914	537,400
Certificates of deposit:
Brokered	724,788	721,977
Customer	964,892	947,406
Total deposits	14,524,397	14,609,342
Subordinated debentures and notes	93,759	93,688
Other borrowings	319,345	387,717
Other liabilities	268,123	170,751
Total liabilities	15,205,624	15,261,498
Commitments and contingent liabilities (Note 5)
Stockholders’ equity:
Preferred stock, $0.01 par value; 5,000,000 shares authorized; 75,000 shares issued and outstanding ($1,000 per share liquidation preference)	71,988	71,988
Common stock, $0.01 par value; 75,000,000 shares authorized; 36,580,552 and 36,965,398 shares issued and outstanding	366	370
Additional paid-in capital	990,394	1,000,775
Retained earnings	1,041,038	1,020,840
Accumulated other comprehensive loss, net	(81,582)	(54,587)
Total stockholders’ equity	2,022,204	2,039,386
Total liabilities and stockholders’ equity	$ 17,227,828	$ 17,300,884