Debt - 2018 Purchase Agreement and Indenture for Scilex - Schedule of Long-Term Debt and Unamortized Discount Balances (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Sep. 07, 2018
Debt Instrument [Line Items]
Unamortized debt discount			$ (7,000,000.0)
Senior Secured Notes, Due 2026 | Scilex Pharmaceuticals, Inc | Senior Notes
Debt Instrument [Line Items]
Principal	$ 133,998,000	$ 151,872,000		$ 224,000,000
Unamortized debt discount	(30,601,000)	(51,022,000)
Unamortized debt issuance costs	(2,235,000)	(3,698,000)
Carrying value	101,162,000	97,152,000
Estimated fair value	$ 115,400,000	$ 122,300,000