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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Classes of loans (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025	Dec. 31, 2024
Loans and Allowance for Credit Losses
Loans receivable	$ 4,526,998	$ 4,427,678
Allowance for credit losses	(64,784)	(64,771)	$ (64,704)	$ (64,760)
Deferred loan fees and gains, net	(5,575)	(6,054)
Loans receivable, net	$ 4,456,639	$ 4,356,853
Weighted average interest rate	5.78%	5.76%
One- to four-family residential construction
Loans and Allowance for Credit Losses
Loans receivable	$ 38,981	$ 30,258
Subdivision construction
Loans and Allowance for Credit Losses
Loans receivable	23,008	32,160
Land development
Loans and Allowance for Credit Losses
Loans receivable	43,555	37,519
Commercial construction
Loans and Allowance for Credit Losses
Loans receivable	326,602	249,224
Owner occupied one- to four-family residential
Loans and Allowance for Credit Losses
Loans receivable	651,228	656,699
Non-owner occupied one- to four-family residential
Loans and Allowance for Credit Losses
Loans receivable	131,499	125,298
Commercial real estate
Loans and Allowance for Credit Losses
Loans receivable	1,583,124	1,556,148
Other residential (multi-family)
Loans and Allowance for Credit Losses
Loans receivable	1,369,294	1,387,410
Commercial business
Loans and Allowance for Credit Losses
Loans receivable	180,182	178,514
Consumer auto
Loans and Allowance for Credit Losses
Loans receivable	23,372	24,169
Consumer other
Loans and Allowance for Credit Losses
Loans receivable	21,449	22,249
Home equity lines of credit
Loans and Allowance for Credit Losses
Loans receivable	$ 134,704	$ 128,030

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