Loans Held for Investment - Aging of Modified Loans (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
30-59 Days
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	$ 474	$ 838
60-89 Days
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	2,393	361
90 Days or More
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	1,303	8
Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	4,170	1,207
Not Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	26,391	32,167
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
Commercial real estate | Non-owner occupied | Not Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	344	361
Commercial real estate | Owner occupied | 30-59 Days
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	77	86
Commercial real estate | Owner occupied | 90 Days or More
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans		8
Commercial real estate | Owner occupied | Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	77	94
Commercial real estate | Owner occupied | Not Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	77	94
Commercial and industrial
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Loans modified and subsequently charged off	3,200	1,700
Commercial and industrial | 30-59 Days
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	256	752
Commercial and industrial | 60-89 Days
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	2,393
Commercial and industrial | 90 Days or More
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	1,303
Commercial and industrial | Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	3,952	752
Commercial and industrial | Not Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	25,945	31,686
1-4 family residential | 30-59 Days
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	141
1-4 family residential | Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	141
1-4 family residential | Not Past Due
Non-Covered Loans and Allowance for Non-Covered Loan Losses
Modified Loans	$ 25	$ 26