Loss Per Share - Schedule of the reconciliation of basic and diluted loss per share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Net loss attributable to Scilex	$ (23,364)	$ (88,424)	$ (47,519)
Net loss attributable to participating securities	0	0	0
Net loss attributable to common stockholders	$ (23,364)	$ (88,424)	$ (47,519)
Weighted average common shares outstanding	134,226	132,858	132,891
Effect of Dilutive Securities	0	0	0
Denominator for Diluted Loss per Share - Adjusted for Dilutive Securities	$ 134,226	$ 132,858	$ 132,891
Weighted Average Number of Shares Outstanding, Diluted	134,226	132,858	132,891
Basic Loss Per Share	$ (0.17)	$ (0.67)	$ (0.36)
Diluted Loss Per Share	$ (0.17)	$ (0.67)	$ (0.36)