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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Effective Tax Rate [Line Items] |  |  |
Income (loss) before income taxes | $ 566,998,000 | $ 528,553,000 | $ 817,729,000
Income tax rate | 0.09% | 0.10% | 0.16%
Change in enacted tax act | (0.52%) | 0.86% | 0.66%
Effect of uncertain tax positions | 0.00% | 0.00% | (0.06%)
Effect of permanent differences | 1.01% | 0.75% | 0.10%
Effect of investment tax credit purchase | (0.41%) | 0.00% | 0.00%
Other discrete items | (0.74%) | 0.05% | 0.22%
Effective income tax rate | 8.61% | 10.30% | 8.66%
Bermuda |  |  |
Effective Tax Rate [Line Items] |  |  |
Income (loss) before income taxes | $ 308,711,000 | $ 325,453,000 | $ 532,391,000
Income tax rate | 0.00% | 0.00% | 0.00%
U.S. |  |  |
Effective Tax Rate [Line Items] |  |  |
Income (loss) before income taxes | $ 256,967,000 | $ 201,960,000 | $ 284,468,000
Effective income tax rate | 9.18% | 8.54% | 7.58%
Foreign |  |  |
Effective Tax Rate [Line Items] |  |  |
Income (loss) before income taxes | $ 1,320,000 | $ 1,140,000 | $ 870,000

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- Definition The portion of the difference, between total income tax expense or benefit as reported in the Income Statement for the year/accounting period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to permanent differences and all other items not otherwise listed in the existing taxonomy. + References No definition available. + Details
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