Registration of securities issued in business combination transactions

Commitments - Additional Information (Detail)

v3.21.2
Commitments - Additional Information (Detail) - USD ($)
 3 Months Ended 12 Months Ended
Feb. 17, 2021
Nov. 13, 2019
Mar. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Underwriting discount         $ 571,876
Stock shares issued during the period shares       31,625,000  
PIPE Investment Subscription Agreements [Member]          
Stock shares issued during the period shares 18,000,000        
Sale of stock issue price per share $ 10.00        
Proceeds from issuance of common stock $ 180,000,000        
Number of days within which securities shall be registered with the securities exchange commission 45 days        
Number of days within which registration shall be effective if there is no notification for review 90 days        
Number of days within which registration shall be effective if there is notification for review 10 days        
Period for which registration statement shall be effective 2 years        
Sponsor Support Agreement [Member]          
Period for which certain shares shall not be transferred post consummation of business combination 7 years        
Sponsor Support Agreement [Member] | Share Price Triggering Warrant Exercise [Member]          
Share price per share $ 20.00        
Stockholder Support Agreement [Member] | Certain Shareholders of Black Skyholdings [Member]          
Percentage of shares to be voted in favour of the merger in case board of directors do not recommend the merger 35.00%        
Period within which the written consent for the merger shall be executed from the date of the registration statement becoming effective 5 days        
Black Sky [Member]          
Purchase price $ 10.00        
Business combination, transferred other $ 925,000,000        
Common stock, par value $ 0.00001        
Cash payable per share $ 0.00001        
Over-Allotment Option          
Option to purchase additional units to cover over-allotments     4,125,000 4,125,000  
Number of additional units purchased by underwriters   4,125,000      
Underwriters option period     45 days 45 days  
Underwriting discount per unit   $ 0.20      
Underwriting discount   $ 6,325,000      
Deferred fee per unit   $ 0.35      
Deferred fee   $ 11,068,750