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Schedule IV - Reinsurance (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Direct Amount | $ 4,386,556 | $ 3,880,522 | $ 3,472,715
Assumed From Other Companies | 25,027 | 30,742 | 21,550
Ceded to Other Companies | 583,977 | 537,884 | 477,012
Net premiums earned | $ 3,827,606 | $ 3,373,380 | $ 3,017,253
Percentage of Amount Assumed to Net | 1.00% | 1.00% | 1.00%
Accident and Health Insurance Segment [Member] |  |  |
Direct Amount | $ 0 | $ 0 | $ 2
Assumed From Other Companies | 0 | 0 | 0
Ceded to Other Companies | 0 | 0 | 2
Net premiums earned | $ 0 | $ 0 | $ 0
Percentage of Amount Assumed to Net | 0.00% | 0.00% | 0.00%
Property and liability insurance [Member] |  |  |
Direct Amount | $ 4,386,556 | $ 3,880,522 | $ 3,472,713
Assumed From Other Companies | 25,027 | 30,742 | 21,550
Ceded to Other Companies | 583,977 | 537,884 | 477,010
Net premiums earned | $ 3,827,606 | $ 3,373,380 | $ 3,017,253
Percentage of Amount Assumed to Net | 1.00% | 1.00% | 1.00%

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