| Document and Entity Information | May 24, 2024 |
| Document And Entity Information [Line Items] | |
| Entity Registrant Name | Scilex Holding Co |
| Amendment Flag | false |
| Entity Central Index Key | 0001820190 |
| Document Type | 8-K |
| Document Period End Date | May 24, 2024 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-39852 |
| Entity Tax Identification Number | 92-1062542 |
| Entity Address, Address Line One | 960 San Antonio Road |
| Entity Address, City or Town | Palo Alto |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94303 |
| City Area Code | (650) |
| Local Phone Number | 516-4310 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | true |
| Common Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Common stock, par value $0.0001 per share |
| Trading Symbol | SCLX |
| Security Exchange Name | NASDAQ |
| Warrant [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Warrants to purchase one share of common stock, each at an exercise price of $11.50 per share |
| Trading Symbol | SCLXW |
| Security Exchange Name | NASDAQ |
