LOANS AND ALLOWANCE FOR CREDIT LOSSES - Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025	Dec. 31, 2024
Accounts Notes And Loans Receivable [Line Items]
Loans	$ 7,587,952	$ 7,300,591
Allowance for credit losses on loans	(85,431)	(83,629)	$ (83,746)	$ (81,058)
Loans, net	7,502,521	7,216,962
Commercial and industrial
Accounts Notes And Loans Receivable [Line Items]
Loans	1,563,421	1,476,559
Allowance for credit losses on loans	(32,410)	(33,182)	(30,384)	(28,847)
Real estate: \| Commercial real estate (including multi-family residential)
Accounts Notes And Loans Receivable [Line Items]
Loans	3,844,629	3,766,294
Allowance for credit losses on loans	(32,375)	(31,873)	(34,008)	(29,833)
Real estate: \| Commercial real estate construction and land development
Accounts Notes And Loans Receivable [Line Items]
Loans	821,723	720,779
Allowance for credit losses on loans	(15,219)	(13,220)	(13,650)	(16,383)
Real estate: \| 1-4 family residential (including home equity)
Accounts Notes And Loans Receivable [Line Items]
Loans	1,167,436	1,136,227
Allowance for credit losses on loans	(3,285)	(3,214)	(3,367)	(3,320)
Real estate: \| Residential construction
Accounts Notes And Loans Receivable [Line Items]
Loans	102,609	124,653
Allowance for credit losses on loans	(1,000)	(1,222)	(1,396)	(1,565)
Consumer and other
Accounts Notes And Loans Receivable [Line Items]
Loans	88,134	76,079
Allowance for credit losses on loans	$ (1,142)	$ (918)	$ (941)	$ (1,110)

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section 45
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-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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