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Reinsurance (Tables) | 12 Months Ended
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Dec. 31, 2024
Reinsurance Disclosures [Abstract] |
Effect Of Reinsurance And Retrocessional Reinsurance On Consolidated Premiums Written And Earned | The following tables summarize the effect of reinsurance and retrocessional reinsurance on premiums written and earned.
| Year Ended December 31, 2024
(dollars in thousands) | Direct |  | Assumed |  | Ceded |  | Net Premiums
Underwriting: |  |  |  |  |  |  |
Written | $ | 8,860,015 |  |  | $ | 1,691,858 |  |  | $ | (2,252,122) |  |  | $ | 8,299,751 |
Earned | $ | 8,801,477 |  |  | $ | 1,628,408 |  |  | $ | (1,993,895) |  |  | $ | 8,435,990 |
Fronting: |  |  |  |  |  |  |
Written | 3,234,025 |  |  | 1,708,733 |  |  | (4,946,334) |  |  | (3,576) |
Earned | 3,053,947 |  |  | 1,559,599 |  |  | (4,617,124) |  |  | (3,578) |
Consolidated: |  |  |  |  |  |  |
Written | $ | 12,094,040 |  |  | $ | 3,400,591 |  |  | $ | (7,198,456) |  |  | $ | 8,296,175 |
Earned | $ | 11,855,424 |  |  | $ | 3,188,007 |  |  | $ | (6,611,019) |  |  | $ | 8,432,412 |
| Year Ended December 31, 2023
(dollars in thousands) | Direct |  | Assumed |  | Ceded |  | Net Premiums
Underwriting: |  |  |  |  |  |  |
Written | $ | 8,657,266 |  |  | $ | 1,620,366 |  |  | $ | (1,878,844) |  |  | $ | 8,398,788 |
Earned | $ | 8,363,710 |  |  | $ | 1,616,630 |  |  | $ | (1,683,648) |  |  | $ | 8,296,692 |
Fronting: |  |  |  |  |  |  |
Written | 2,649,217 |  |  | 1,075,388 |  |  | (3,725,818) |  |  | (1,213) |
Earned | 2,636,179 |  |  | 937,400 |  |  | (3,574,792) |  |  | (1,213) |
Consolidated: |  |  |  |  |  |  |
Written | $ | 11,306,483 |  |  | $ | 2,695,754 |  |  | $ | (5,604,662) |  |  | $ | 8,397,575 |
Earned | $ | 10,999,889 |  |  | $ | 2,554,030 |  |  | $ | (5,258,440) |  |  | $ | 8,295,479 |
| Year Ended December 31, 2022
(dollars in thousands) | Direct |  | Assumed |  | Ceded |  | Net Premiums
Underwriting: |  |  |  |  |  |  |
Written | $ | 8,085,812 |  |  | $ | 1,761,726 |  |  | $ | (1,640,165) |  |  | $ | 8,207,373 |
Earned | $ | 7,379,766 |  |  | $ | 1,589,920 |  |  | $ | (1,378,191) |  |  | $ | 7,591,495 |
Fronting: |  |  |  |  |  |  |
Written | 2,644,138 |  |  | 710,006 |  |  | (3,358,127) |  |  | (3,983) |
Earned | 2,688,804 |  |  | 656,885 |  |  | (3,349,392) |  |  | (3,703) |
Consolidated: |  |  |  |  |  |  |
Written | $ | 10,729,950 |  |  | $ | 2,471,732 |  |  | $ | (4,998,292) |  |  | $ | 8,203,390 |
Earned | $ | 10,068,570 |  |  | $ | 2,246,805 |  |  | $ | (4,727,583) |  |  | $ | 7,587,792 |
Effect of Reinsurance And Retrocessional Reinsurance on Incurred Losses and Loss Adjustment Expenses | The following table summarizes the effect of reinsurance and retrocessional reinsurance on losses and loss adjustment expenses in the Company's underwriting operations.
| Years ended December 31,
(dollars in thousands) | 2024 |  | 2023 |  | 2022
Gross losses and loss adjustment expenses | $ | 6,970,871 |  |  | $ | 6,817,630 |  |  | $ | 5,281,424 |
Ceded losses and loss adjustment expenses | (1,917,318) |  |  | (1,496,265) |  |  | (834,648) |
Net losses and loss adjustment expenses | $ | 5,053,553 |  |  | $ | 5,321,365 |  |  | $ | 4,446,776 |

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