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Stock Incentive and Employee Benefit Plans (Additional Information) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Feb. 13, 2023
Dec. 31, 2022
Jun. 30, 2017
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
May 04, 2023
Jan. 17, 2023
Nov. 10, 2022
Nov. 09, 2022
Dec. 31, 2019
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Number of option outstanding to purchase common stock   16,939   31,353   31,353   16,939 18,968 20,746         17,114
Common stock shares reserved for future issuance                         16,939,436    
Options granted weighted-average grant date fair value           $ 3.66                  
Stock options exercised (in shares)           128   202 0 38          
Stock-based compensation expenses           $ 7,307 $ 2,792 $ 5,280 $ 5,822 $ 5,395          
Unrecognized compensation cost related to unvested stock option grants       $ 52,300   52,300                  
Employee benefit plan contributions by employer           200   $ 300 300 300          
Stock issued for services, shares 4,000,000                            
Accrued legal fees       1,600   $ 1,600                  
Weighted average period over grant           3 years 4 months 24 days                  
Total intrinsic value of option exercise           $ 800                  
Operating Expenses                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Stock-based compensation expenses       $ 3,600 $ 1,400 $ 7,300 $ 2,800                
Maximum                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Number of shares authorized under the plan                     30,276,666        
2017 Equity Incentive Plan                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Common stock shares reserved for future issuance   14,622,712           14,622,712              
Stock options vesting description     Stock options granted under the Scilex Pharma 2017 Plan typically vest 1/4th of the shares on the first anniversary of the vesting commencement date and 1/48th of the remaining options vest each month thereafter.                        
2019 Stock Option Plan                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Common stock shares reserved for future issuance                             30,000,000
Stock options vesting description               Stock options granted under the 2019 Stock Option Plan typically vest with respect to 1/4th of the shares on the first anniversary of the vesting commencement date and 1/48th of the remaining shares on each monthly anniversary thereafter.              
2022 Equity Incentive Plan                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Number of option outstanding to purchase common stock   16,939,436   31,353,086   31,353,086   16,939,436              
Common stock shares reserved for future issuance   14,622,712           14,622,712              
Stock-based compensation expenses               $ 5,300 $ 5,800 $ 5,400          
Unrecognized compensation cost related to unvested stock option grants   $ 2,700           $ 2,700              
Weighted average period over grant   1 year 4 months 24 days                          
Number of shares authorized under the plan                     10,000,000        
Shares of common stock reserved for future issuance, description               if any, as such shares become available from time to time, which the amount will be increased commencing on January 1, 2023 and ending on (and including) January 1, 2032, in an amount equal to the lesser of (i) 4% of the total number of shares of Common Stock outstanding on December 31 of the preceding year, (ii) 7,311,356 shares of Common Stock, and (iii) such number of shares of the Common Stock determined by the Board or the compensation committee of the Board prior to January 1 of a given year.              
Percentage of total number of shares of common stock outstanding               4.00%              
Common stock capital incremental shares reserved for future issuance each year   7,311,356           7,311,356              
2022 Equity Incentive Plan | Maximum                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Common stock shares reserved for future issuance   20,276,666           20,276,666              
Number of shares authorized under the plan                     30,276,666        
2022 Equity Incentive Plan | Minimum                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Number of shares authorized under the plan                     20,276,666        
2023 Inducement Plan                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Number of shares available for grant                       1,400,000      
2022 Employee Stock Purchase Plan                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Number of option outstanding to purchase common stock   0   0   0   0              
Common stock shares reserved for future issuance       1,462,271   1,462,271               1,462,271  
Shares of common stock reserved for future issuance, description               The number of shares of the Common Stock that will be reserved for issuance will automatically increase on January 1 of each year for a period of up to ten years, commencing on January 1, 2023 and ending on (and including) January 1, 2032, in an amount equal to the lesser of (i) 1% of the total number of shares of the Common Stock outstanding on December 31 of the immediately preceding calendar year; (ii) 1,827,839 shares of the Common Stock; and (iii) such number of shares of the Common Stock determined by the Board or the compensation committee of the Board prior to January 1 of a given year, provided however, that the Board may act prior to January 1 of a given calendar year to provide that there will be no increase for such calendar year or the increase for such year will be a lesser number of shares than the amount set forth in clauses (i) to (iii) above.              
Percentage of total number of shares of common stock outstanding               1.00%              
Common stock capital incremental shares reserved for future issuance each year   1,827,839           1,827,839              
2022 Employee Stock Purchase Plan | Maximum                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Common stock shares reserved for future issuance       2,875,759   2,875,759