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Loans and Allowance for Credit Losses - Loans by Class of Loan Portfolio (Details) $ in Thousands	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 4,848,030	$ 4,900,302
% of Total Loans	1.0000	1.0000
Less: allowance for credit losses	$ (58,481)	$ (58,836)	$ (58,042)	$ (57,910)
Total loans, net	4,789,549	4,841,466
Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 2,599,815	$ 2,643,996
% of Total Loans	0.5362	0.5395
Less: allowance for credit losses	$ (21,672)	$ (21,387)	(21,988)	(22,846)
Residential real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 1,425,733	$ 1,414,964
% of Total Loans	0.2941	0.2888
Less: allowance for credit losses	$ (22,993)	$ (22,510)	(22,393)	(21,776)
Construction
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 342,835	$ 344,903
% of Total Loans	0.0707	0.0704
Less: allowance for credit losses	$ (4,806)	$ (5,968)	(3,842)	(2,854)
Commercial
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 220,833	$ 226,006
% of Total Loans	0.0456	0.0461
Less: allowance for credit losses	$ (3,497)	$ (3,005)	(2,855)	(3,138)
Consumer
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 254,478	$ 265,912
% of Total Loans	0.0525	0.0543
Less: allowance for credit losses	$ (5,415)	$ (5,767)	(6,574)	(6,889)
Credit cards
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 4,336	$ 4,521
% of Total Loans	0.0009	0.0009
Less: allowance for credit losses	$ (98)	$ (199)	$ (390)	$ (407)

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