Loans Held for Investment - Amortized cost basis of the loans held for investment modified for borrowers (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
TDRs, Non-covered loans
Total Modifications as a percentage of portfolio segment	0.30%	0.40%	0.40%	0.50%
Term Extension
TDRs, Non-covered loans
Total amortized cost of financing receivable modified	$ 23,752	$ 33,349	$ 33,417	$ 40,378
Combination Term Extension and Rate Reduction
TDRs, Non-covered loans
Total amortized cost of financing receivable modified	$ 493		$ 2,126	$ 410
Commercial real estate \| Non-owner occupied
TDRs, Non-covered loans
Total Modifications as a percentage of portfolio segment		0.40%		0.40%
Commercial real estate \| Non-owner occupied \| Term Extension
TDRs, Non-covered loans
Total amortized cost of financing receivable modified		$ 8,961		$ 8,961
Commercial real estate \| Owner occupied
TDRs, Non-covered loans
Total Modifications as a percentage of portfolio segment	0.20%	0.10%	0.20%	0.30%
Commercial real estate \| Owner occupied \| Term Extension
TDRs, Non-covered loans
Total amortized cost of financing receivable modified	$ 3,480	$ 1,392	$ 3,795	$ 4,523
Commercial and industrial
TDRs, Non-covered loans
Total Modifications as a percentage of portfolio segment	1.20%	0.60%	1.70%	0.80%
Commercial and industrial \| Term Extension
TDRs, Non-covered loans
Total amortized cost of financing receivable modified	$ 19,981	$ 8,661	$ 27,095	$ 11,743
Commercial and industrial \| Combination Term Extension and Rate Reduction
TDRs, Non-covered loans
Total amortized cost of financing receivable modified			$ 263	$ 410
Construction and land development
TDRs, Non-covered loans
Total Modifications as a percentage of portfolio segment	0.00%	1.10%	0.20%	1.10%
Construction and land development \| Term Extension
TDRs, Non-covered loans
Total amortized cost of financing receivable modified	$ 215	$ 10,004	$ 1,728	$ 10,004
1-4 family residential
TDRs, Non-covered loans
Total Modifications as a percentage of portfolio segment	0.00%	0.20%	0.10%	0.30%
1-4 family residential \| Term Extension
TDRs, Non-covered loans
Total amortized cost of financing receivable modified	$ 76	$ 4,331	$ 799	$ 5,147
1-4 family residential \| Combination Term Extension and Rate Reduction
TDRs, Non-covered loans
Total amortized cost of financing receivable modified	$ 493		$ 1,863