Related-Party Transactions (Details) $ / shares in Units, $ in Millions	May 04, 2021 tradingDay demand $ / shares shares	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)
Private Placement Warrants
Related Party Transaction [Line Items]
Warrants outstanding (in shares) | shares	9,333,333
Warrants, exercise price (in dollars per share) | $ / shares	$ 11.50
Warrants outstanding amount | $		$ 7	$ 7
Related Party
Related Party Transaction [Line Items]
Stock issued upon conversion (in shares) | shares	11,500,000
Registration rights agreement, filing timeline	60 days
Registration rights agreement, number of demands for registration allowed | demand	2
Related Party | Private Placement Warrants
Related Party Transaction [Line Items]
Reverse recapitalization, contingent consideration, earnout period	30 days
Related Party | Vesper Founders
Related Party Transaction [Line Items]
Reverse recapitalization, contingent consideration, earnout period	1 year
Reverse recapitalization, contingent consideration, stock price trigger (in dollars per share) | $ / shares	$ 12.00
Reverse recapitalization, contingent consideration, threshold days | tradingDay	20
Reverse recapitalization, contingent consideration, consecutive threshold days | tradingDay	30
Reverse recapitalization, contingent consideration, commencement period	150 days
Related Party | LCP
Related Party Transaction [Line Items]
Reverse recapitalization, threshold percentage to designate one director (as a percent)	10.00%
Reverse recapitalization, threshold percentage to designate two directors (as a percent)	15.00%
Reverse recapitalization, threshold percentage to designate three directors (as a percent)	40.00%
Reverse recapitalization, threshold percentage to designate one director on board (as a percent)	10.00%