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Business Combination - Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail) - Rigetti Holdings, Inc. - USD ($)
Oct. 31, 2021
Jan. 31, 2021
Jan. 31, 2020
Business Acquisition [Line Items]      
Goodwill $ 5,377,255 $ 5,377,255 $ 5,377,255
QX Branch [Member]      
Business Acquisition [Line Items]      
Cash   149,484  
Accounts receivable   96,279  
Other current assets   20,910  
Goodwill   5,377,255  
Accounts payable   (8,842)  
Accrued expenses and other current liabilities   (62,632)  
Total   $ 5,572,454