Loans Held for Investment - Aging of Modified Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Loans modified and subsequently charged off	$ 1,700	$ 800
30-59 Days
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	838	380
60-89 Days
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	361
90 Days or More
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	8	11
Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	1,207	391
Not Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	32,167	37,019
Commercial Real Estate | Non-owner occupied | 30-59 Days
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans		380
Commercial Real Estate | Non-owner occupied | 60-89 Days
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	361
Commercial Real Estate | Non-owner occupied | Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	361	380
Commercial Real Estate | Non-owner occupied | Not Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	361	33,680
Commercial Real Estate | Owner occupied | 30-59 Days
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	86
Commercial Real Estate | Owner occupied | 90 Days or More
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	8	11
Commercial Real Estate | Owner occupied | Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	94	11
Commercial Real Estate | Owner occupied | Not Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	94	11
Commercial and industrial | 30-59 Days
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	752
Commercial and industrial | Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	752
Commercial and industrial | Not Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	31,686	3,071
Construction and land development | Not Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans		$ 257
Residential | Not Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	$ 26