Stockholders' Equity (Details) - $ / shares		12 Months Ended
	Jul. 28, 2022	Dec. 31, 2022	Dec. 31, 2020	Dec. 31, 2024	Dec. 31, 2023	Oct. 14, 2022
Sale of Stock [Line Items]
Common stock, authorized (in shares)				200,000,000	200,000,000
Common stock, par value (usd per share)				$ 0.00001	$ 0.00001
Preferred stock, authorized (in shares)				10,000,000	10,000,000
Preferred stock, par value (usd per share)				$ 0.00001	$ 0.00001
Preferred stock, shares issued (in shares)				0	0
Preferred stock, shares outstanding (in shares)				0	0
Omnibus Agreement
Sale of Stock [Line Items]
Exercise price (usd per share)						$ 0.01
Warrant vesting period						5 years
Warrant liability | Omnibus Agreement
Sale of Stock [Line Items]
Class of warrant issued of common stock (in shares)						3,352,025
Affiliated entity | Lemonade, Inc. | The Lemonade Foundation
Sale of Stock [Line Items]
Shares owned by foundation (in shares)				400,000	400,000
The Lemonade Foundation | Affiliated entity
Sale of Stock [Line Items]
Contribution to the Lemonade Foundation (in shares)		500,000	500,000
Metromile
Sale of Stock [Line Items]
Shares issued for acquisition (in shares)	6,901,934