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Business Combination - Additional Information (Details)
$ / shares in Units, shares in Thousands, d in Thousands
4 Months Ended 12 Months Ended
Dec. 31, 2021
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
d
$ / shares
shares
Dec. 15, 2021
shares
Dec. 31, 2020
shares
Dec. 31, 2019
shares
Business Acquisition [Line Items]          
Exchangeable shares and common stock 9,295,097 9,295,097      
Common stock, shares issued 21,579 21,579   5,241  
Trading days | d   20      
Consecutive trading days | d   30      
Consecutive trading days per share | $ / shares $ 8.57 $ 8.57      
Consideration effectively transferred | $   $ 37,600,000      
Revenue from acquisition | $ $ 263,000        
Earning from acquisition | $ $ 74,000        
Peraso Tech          
Business Acquisition [Line Items]          
Common stock, shares issued     3,055,584    
Common Stock          
Business Acquisition [Line Items]          
Common stock, shares issued 21,579 21,579   5,241 164
Common Stock | Peraso Tech          
Business Acquisition [Line Items]          
Conversion ratio of common stock   0.045239122387267      
Equity Method Investment, Ownership Percentage 61.00% 61.00%      
Peraso Shares [Member]          
Business Acquisition [Line Items]          
Exchangeable shares and common stock 1,312,878 1,312,878      
Common stock, shares issued 3,558,151 3,558,151      
Escrow Shares          
Business Acquisition [Line Items]          
Exchangeable shares and common stock 502,567 502,567