Loans and Allowance for Credit Losses - Narrative (Details) |
6 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2025
USD ($)
|
Dec. 31, 2025
USD ($)
|
|
| Certain Loans Acquired in Transfer Accounted for as Debt Securities Accretable Yield Movement Schedule [Line Items] | |||
| Accrued interest receivable | $ 46,200,000 | $ 45,900,000 | |
| Loans acquired | 0 | 0 | |
| Loans held for investment | $ 11,673,616,000 | $ 11,434,605,000 | |
| Non-accrual business loans, no allowance | 20,000,000.0 | 16,900,000 | |
| Interest income | 600,000 | $ 700,000 | |
| Commitment to lend | 1,400,000 | 600,000 | |
| Related Party | |||
| Certain Loans Acquired in Transfer Accounted for as Debt Securities Accretable Yield Movement Schedule [Line Items] | |||
| Loans held for investment | $ 308,438,000 | $ 340,010,000 | |