Markel Fronting Arrangement - Schedule of Changes in the Deposit Liability (Details) $ in Thousands |
9 Months Ended |
|---|---|
|
Sep. 30, 2026
USD ($)
| |
| Changes In The Deposit Liability [Roll Forward] | |
| Beginning balance | $ 50,500 |
| Amortization of deferred gain | (4,478) |
| Claim payments | (16,876) |
| Ending balance | $ 29,146 |