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Lemonade, Inc. [Member] Lemonade, Inc. 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Kingdom Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Adjustment to Compensation: Adjustment to Compensation [Axis] New Business Financing Agreement New Business Financing Agreement [Member] New Business Financing Agreement Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Cash paid for interest expense on borrowings under financing agreement Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total Assets, Fair Value Disclosure Income Tax Jurisdiction [Axis] Income Tax Jurisdiction [Axis] Unvested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Name Measure Name Illinois ILLINOIS Liability for Unpaid Claims and Claims Adjustment Expense 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