Loans - Schedule of Loan Portfolio by Classes (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, gross	$ 6,976,861	$ 6,613,391
Real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, gross	5,060,044	4,772,853
Real estate loans \| Nonowner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, gross	1,468,739	1,591,861
Real estate loans \| Multi-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, gross	220,001	322,447
Real estate loans \| Land development and construction loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, gross	500,872	534,028
Real estate loans \| Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, gross	2,189,612	2,448,336
Real estate loans \| Single-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, gross	2,159,674	1,515,181
Real estate loans \| Owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, gross	710,758	809,336
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, gross	1,657,316	1,446,406
Loans to financial institutions and acceptances
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, gross	49,502	148,602
Consumer loans and overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, gross	$ 209,999	$ 245,530