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v3.23.1

Reinsurance (List of Direct, Assumed, and Ceded Reinsurance Amounts) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Premiums earned: |  |
Net | $ 902,336 | $ 812,283
Loss and loss expenses incurred: |  |
Net | 567,438 | 494,236
Direct Assumed and Ceded Reinsurance Amounts [Member] |  |
Premiums written: |  |
Direct | 1,132,760 | 1,001,049
Assumed | 5,394 | 5,314
Ceded | (138,386) | (116,565)
Net | 999,768 | 889,798
Premiums earned: |  |
Direct | 1,032,228 | 931,376
Assumed | 6,290 | 5,528
Ceded | (136,182) | (124,621)
Net | 902,336 | 812,283
Loss and loss expenses incurred: |  |
Direct | 613,229 | 528,588
Assumed | 5,255 | 4,278
Ceded | (51,046) | (38,630)
Net | $ 567,438 | $ 494,236

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