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Statutory Requirements - Statutory EBS and BSCR (Details) - Bermuda - USD ($)	Dec. 31, 2022	Dec. 31, 2021
ALRe
Statutory Accounting Practices [Line Items]
EBS Capital and Surplus	$ 16,759,000,000	$ 14,630,000,000
BSCR ratio	256.00%	209.00%
Statutory Accounting Practices, Minimum Solvency Margin Required	$ 8,000,000
Statutory Accounting Practices, Minimum Solvency Margin, Percentage of Assets Threshold	2.00%
Statutory Accounting Practices, Minimum Solvency Margin, Assets Threshold	$ 500,000,000
Statutory Accounting Practices, Minimum Solvency Margin, Percentage of Assets In Excess of Threshold	1.50%
AARe
Statutory Accounting Practices [Line Items]
EBS Capital and Surplus	$ 21,876,000,000	$ 6,632,000,000
BSCR ratio	278.00%	2460.00%
Statutory Accounting Practices, Minimum Solvency Margin Required	$ 8,000,000
Statutory Accounting Practices, Minimum Solvency Margin, Percentage of Assets Threshold	2.00%
Statutory Accounting Practices, Minimum Solvency Margin, Assets Threshold	$ 500,000,000
Statutory Accounting Practices, Minimum Solvency Margin, Percentage of Assets In Excess of Threshold	1.50%
ACRA
Statutory Accounting Practices [Line Items]
EBS Capital and Surplus	$ 5,993,000,000	$ 3,872,000,000
BSCR ratio	262.00%	183.00%
Statutory Accounting Practices, Minimum Solvency Margin, Assets Threshold	$ 500,000
Statutory Accounting Practices, Minimum Solvency Margin, Percentage of Assets In Excess of Threshold	1.50%

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Bermuda Solvency Capital Requirement ratio

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