PARENT COMPANY ONLY FINANCIAL INFORMATION - Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Assets
Equity securities	$ 15,862	$ 9,812
Investments in subsidiaries:
Premises and equipment, net	118,820	122,594
Other assets	348,590	355,690
Total assets	12,046,722	12,283,415
Liabilities:
Short-term borrowings	0	12,000
Long-term debt	0	18,000
Subordinated notes, net of unamortized issuance costs	227,723	222,882
Junior subordinated debentures owed to unconsolidated trusts	74,815	71,993
Other liabilities	211,775	196,699
Total liabilities	10,663,453	11,011,434
Total stockholders’ equity	1,383,269	1,271,981	$ 1,145,977	$ 1,319,112
Total liabilities and stockholders’ equity	12,046,722	12,283,415
Parent Company
Assets
Cash and cash equivalents	73,484	100,098
Debt securities	0	987
Equity securities	10,295	9,364
Investments in subsidiaries:
Bank	1,584,264	1,478,118
Premises and equipment, net	11	7
Other assets	29,859	20,100
Total assets	1,697,913	1,608,674
Liabilities:
Short-term borrowings	0	12,000
Long-term debt	0	18,000
Subordinated notes, net of unamortized issuance costs	227,723	222,882
Junior subordinated debentures owed to unconsolidated trusts	74,815	71,993
Other liabilities	12,106	11,818
Total liabilities	314,644	336,693
Total stockholders’ equity	1,383,269	1,271,981
Total liabilities and stockholders’ equity	$ 1,697,913	$ 1,608,674