Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Summary of Changes in Fair Value of Warrant Liabilities (Detail)

v3.21.1
Fair Value Measurements - Summary of Changes in Fair Value of Warrant Liabilities (Detail) - USD ($)
 7 Months Ended
Sep. 14, 2020
Dec. 31, 2020
Changes In Fair Value Of Warrant Liabilities [Line Items]    
Initial measurement on September 14, 2020   $ 16,109,000
Change in valuation inputs or other assumptions   7,257,000
Private Placement [Member]    
Changes In Fair Value Of Warrant Liabilities [Line Items]    
Fair value as of May 29, 2020   0
Initial measurement on September 14, 2020 $ 5,899,000  
Change in valuation inputs or other assumptions   2,747,000
Fair value as of December 31, 2020   8,646,000
Public [Member]    
Changes In Fair Value Of Warrant Liabilities [Line Items]    
Fair value as of May 29, 2020   0
Initial measurement on September 14, 2020 10,210,000  
Change in valuation inputs or other assumptions   4,510,000
Fair value as of December 31, 2020   14,720,000
Warrant Liabilities [Member]    
Changes In Fair Value Of Warrant Liabilities [Line Items]    
Fair value as of May 29, 2020   0
Initial measurement on September 14, 2020 $ 16,109,000  
Change in valuation inputs or other assumptions   7,257,000
Fair value as of December 31, 2020   $ 23,366,000