| Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Debt Securities, Available-for-Sale, Excluding Accrued Interest, Noncurrent | - | - | - | - | 292 |
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| Debt Securities, Available-for-Sale, Excluding Accrued Interest, Current | - | - | - | - | 15 |
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| Other investments | 1 | 5 | 4 | 4 | 4 |
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| Total investments | 225 | 135 | 133 | 171 | 311 |
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| Cash and cash equivalents | 1,113 | 706 | 762 | 679 | 599 |
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| Restricted cash | 1 | 1 | 1 | 1 | 1 |
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| Premiums Receivable, Net | 130 | 148 | 112 | 247 | 305 |
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| Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments | 125 | 155 | 149 | 125 | 151 |
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| Prepaid reinsurance premiums | 113 | 101 | 74 | 48 | 25 |
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| Other assets | 56 | 74 | 82 | 76 | 103 |
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| Total assets | 1,762 | 1,319 | 1,313 | 1,348 | 1,496 |
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| Loss and loss adjustment expense reserves | - | 320 | 287 | 284 | 413 |
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| Unearned premiums | - | - | - | 284 | 354 |
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| Long-Term Debt | 188 | - | 295 | 299 | 200 |
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| Reinsurance Payable | 89 | 102 | 120 | 54 | 33 |
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| Accounts payable and accrued expenses | 48 | 29 | 40 | 66 | 71 |
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| Other liabilities | 10 | 40 | 45 | 83 | 109 |
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| Total liabilities | 730 | 671 | 924 | 1,070 | 1,180 |
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| Temporary Equity, Carrying Amount, Attributable to Parent | - | 112 | 112 | 112 | 112 |
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| Additional paid-in capital | 1,776 | 1,806 | 1,851 | 1,883 | 1,888 |
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| Accumulated other comprehensive loss | 6 | 0 | -6 | -2 | -2 |
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| Accumulated loss | -748 | -1,270 | -1,568 | -1,715 | -1,682 |
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| Total stockholders’ equity | 1,032 | 536 | 277 | 166 | 204 |
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| Total liabilities, redeemable convertible preferred stock and stockholders’ equity | 1,762 | 1,319 | 1,313 | 1,348 | 1,496 |
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