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Description of Business - Additional Information (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2022
USD ($)
Director
$ / shares
Mar. 02, 2022
$ / shares
Dec. 31, 2021
USD ($)
$ / shares
Description Of Organization Business Operations And Basis Of Presentation [Line Items]      
Common Stock, Par or Stated Value Per Share $ 0.0001   $ 0.0001
Proceeds from business combination and private investment in public equity | $ $ 225,600    
Accumulated deficit | $ $ 217,601   $ 207,131
Rigetti Holdings Inc [Member]      
Description Of Organization Business Operations And Basis Of Presentation [Line Items]      
Number of board members | Director 8    
Supernova Acquistion [Member]      
Description Of Organization Business Operations And Basis Of Presentation [Line Items]      
Number of board members | Director 1    
Class A Ordinary Shares | Conversion Of Common Stock Shares From The Previous Company To The Current Company [Member]      
Description Of Organization Business Operations And Basis Of Presentation [Line Items]      
Common Stock, Par or Stated Value Per Share   $ 0.0001  
Class B Ordinary Shares | Conversion Of Common Stock Shares From The Previous Company To The Current Company [Member]      
Description Of Organization Business Operations And Basis Of Presentation [Line Items]      
Common Stock, Par or Stated Value Per Share   $ 0.0001