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SCHEDULE I. SUMMARY OF INVESTMENTS OTHER THAN INVESTMENTS IN RELATED PARTIES (Details) $ in Thousands | Dec. 31, 2024 USD ($)
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SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Fair Value | $ 32,639,456
Amount at Which Shown in the Balance Sheet | 32,639,456
Fixed maturity investments trading |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Amortized Cost or Cost | 23,750,540
Fair Value | 23,562,514
Amount at Which Shown in the Balance Sheet | 23,562,514
U.S. treasuries |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Amortized Cost or Cost | 11,062,641
Fair Value | 11,001,893
Amount at Which Shown in the Balance Sheet | 11,001,893
Corporate |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Amortized Cost or Cost | 7,919,470
Fair Value | 7,862,423
Amount at Which Shown in the Balance Sheet | 7,862,423
Residential mortgage-backed |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Amortized Cost or Cost | 1,761,607
Fair Value | 1,707,056
Amount at Which Shown in the Balance Sheet | 1,707,056
Asset-backed |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Amortized Cost or Cost | 1,416,132
Fair Value | 1,422,393
Amount at Which Shown in the Balance Sheet | 1,422,393
Agencies |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Amortized Cost or Cost | 633,726
Fair Value | 623,489
Amount at Which Shown in the Balance Sheet | 623,489
Non-U.S. government |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Amortized Cost or Cost | 624,381
Fair Value | 618,809
Amount at Which Shown in the Balance Sheet | 618,809
Commercial mortgage-backed |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Amortized Cost or Cost | 332,583
Fair Value | 326,451
Amount at Which Shown in the Balance Sheet | 326,451
Short term investments |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Amortized Cost or Cost | 4,532,166
Fair Value | 4,531,655
Amount at Which Shown in the Balance Sheet | 4,531,655
Equity investments |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Fair Value | 117,756
Amount at Which Shown in the Balance Sheet | 117,756
Total other investments |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Fair Value | 4,324,761
Amount at Which Shown in the Balance Sheet | 4,324,761
Fund investments |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Fair Value | 2,128,499
Amount at Which Shown in the Balance Sheet | 2,128,499
Catastrophe bonds |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Fair Value | 1,984,396
Amount at Which Shown in the Balance Sheet | 1,984,396
Direct private equity investments |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Fair Value | 211,866
Amount at Which Shown in the Balance Sheet | 211,866
Investments in other ventures, under equity method |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |
Fair Value | 102,770
Amount at Which Shown in the Balance Sheet | $ 102,770

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