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Subsequent Event - Narrative (Details) - Subsequent event $ in Millions |  | 3 Months Ended
--- | --- | ---
May 02, 2023 USD ($) States | Sep. 30, 2023 USD ($)
Crop Risk Services |  |
Subsequent Event [Line Items] |  |
Payments to acquire subsidiaries |  | $ 240
Net tangible assets to be acquired |  | $ 30
Number of states in which entity operates | States | 37 |
Crop Risk Services | Crop year 2022 |  |
Subsequent Event [Line Items] |  |
Gross written premiums | $ 1,200 |
Great American Insurance Company | Crop year 2022 |  |
Subsequent Event [Line Items] |  |
Gross written premiums | $ 1,800 |

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