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Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 1,046,500,000
Income tax examination, penalties and interest incurred	0	$ 0
RH Solutions Insurance (Cayman) Ltd.
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	166,200,000
U.S. Federal
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	719,800,000
U.S. Federal | Research Tax Credit Carryforward
Operating Loss Carryforwards [Line Items]
Tax credit carryforward, amount	10,000,000
U.S. State
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	326,700,000
U.S. State | Research Tax Credit Carryforward
Operating Loss Carryforwards [Line Items]
Tax credit carryforward, amount	$ 6,600,000

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The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.

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