General form of registration statement for all companies including face-amount certificate companies

Reverse Recapitalization - Additional Information (Detail)

v3.21.2
Reverse Recapitalization - Additional Information (Detail)
$ / shares in Units, $ in Millions
Sep. 13, 2021
USD ($)
Day
$ / shares
shares
Sep. 09, 2021
USD ($)
$ / shares
shares
Sep. 08, 2021
shares
Sep. 30, 2021
shares
Dec. 31, 2020
shares
Dec. 31, 2019
shares
Common Stock, Shares, Outstanding     31,625 113,324,000 34,692,000 31,074,000
Common Class B To Common Class A [Member]            
Conversion of Stock, Shares Issued     7,900,000      
Common Stock With Performance Terms [Member]            
Common Stock, Shares, Outstanding   2,400,000        
Common Stock, Conversion Terms, Lockup Period   7 years        
Common Class A [Member]            
Common Stock, Shares, Outstanding       113,300,000 34,700,000  
Osprey Technology Acquisition Corp [Member]            
Common Stock, Shares, Outstanding     10,250      
Osprey Technology Acquisition Corp [Member] | Common Class A [Member]            
Sale of Stock, Number of Shares Issued in Transaction   18,000,000.0        
Sale of Stock, Price Per Share | $ / shares   $ 10.00        
Sale of Stock, Consideration Received on Transaction | $   $ 180.0        
Stock Redeemed or Called During Period, Shares   21,400,000        
Conversion of Stock, Shares Converted     7,900,000      
Osprey Technology Acquisition Corp [Member] | Common Class A [Member] | Palantir Technologies Inc [Member]            
Sale of Stock, Number of Shares Issued in Transaction 800,000          
Sale of Stock, Price Per Share | $ / shares $ 10.00          
Sale of Stock, Consideration Received on Transaction | $ $ 8.0          
Sale of Stock, Number of Days Subsequent to Transaction | Day 2          
Osprey Technology Acquisition Corp [Member] | Common Class A [Member] | Legacy Black Sky [Member]            
Sale of Stock, Number of Shares Issued in Transaction 79,000,000.0