Loans (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Loans | ||||
| Accrued interest receivable on loans | $ 45,600 | $ 46,400 | ||
| Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Accrued Investment Income Receivable | Accrued Investment Income Receivable | ||
| Provision for credit losses | $ 2,200 | $ 4,300 | ||
| Allowance for credit losses - loans | $ 44,450 | $ 40,037 | $ 42,802 | $ 40,152 |
| Percentage of financing receivable non-performing loans | 87.90% | 103.00% | ||
| Percentage of financing receivable on total loans | 0.68% | 0.64% | ||