Registration of securities issued in business combination transactions

Description of Organization and Business Operations (Detail)

v3.20.4
Description of Organization and Business Operations (Detail)
 1 Months Ended 9 Months Ended 12 Months Ended
Apr. 08, 2019
USD ($)
Item
$ / shares
shares
Apr. 30, 2019
shares
Sep. 30, 2020
USD ($)
$ / shares
Sep. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
$ / shares
Dec. 31, 2018
$ / shares
Initial Public Offering            
Proceeds from sale of stock | $       $ 287,500,000 $ 287,500,000  
Warrant price (in dollars per warrant) | $ / shares     $ 1.00   $ 1.00  
Minimum number of business acquisitions required | Item 1          
Minimum requirement of acquisitions as percentage of assets in trust (in percent) 80.00%          
Common stock, par value (in dollars per share) | $ / shares $ 0.0001   $ 0.0001   $ 0.0001 $ 0.0001
Minimum net tangible assets upon consummation of a Business Combination | $ $ 5,000,001          
Restriction on redemption of common stock sold (as a percent) 15.00%          
Redemption obligation of shares upon non completion of business combination (as a percent) 100.00%          
Term to complete business combination 24 months          
Number of business days to redeem public shares 10 days          
Maximum reduction in interest to pay dissolution expenses | $ $ 100,000   $ 100,000   $ 100,000  
IPO            
Initial Public Offering            
Number of shares issued | shares 28,750,000 28,750,000        
Share price (in dollars per share) | $ / shares $ 10.00          
Warrant price (in dollars per warrant) | $ / shares $ 11.50          
Over-allotment option            
Initial Public Offering            
Number of shares issued | shares 3,750,000          
Private Placement | Warrant            
Initial Public Offering            
Warrants issued (in shares) | shares 7,750,000          
Warrant price (in dollars per warrant) | $ / shares $ 1.00          
Proceeds from Issuance of warrants | $ $ 7,750,000          
Ordinary Shares            
Initial Public Offering            
Share price (in dollars per share) | $ / shares $ 10.00          
Proceeds from sale of stock | $ $ 287,500,000          
Anticipated share price (in dollars per share) | $ / shares $ 10.00          
Ordinary Shares | IPO            
Initial Public Offering            
Number of shares issued | shares 28,750,000          
Ordinary Shares | Over-allotment option            
Initial Public Offering            
Number of shares issued | shares 3,750,000          
Share price (in dollars per share) | $ / shares $ 10.00          
Proceeds from sale of stock | $ $ 287,500,000          
Offering Costs | $ 15,000,000          
Deferred underwriting commissions | $ $ 9,200,000