Registration of securities issued in business combination transactions

Fair value measurements - Summary of Warrants (Detail)

v3.21.1
Fair value measurements - Summary of Warrants (Detail) - Warrant - USD ($)
3 Months Ended 12 Months Ended
Nov. 13, 2019
Nov. 05, 2019
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Class of Warrant or Right [Line Items]                
Beginning Balance     $ 34,042,250 $ 25,427,625 $ 16,413,500 $ 21,807,000 $ 21,807,000 $ 0
Initial measurement   $ 13,037,500           13,037,500
Change in valuation inputs or other assumptions     1,689,625 8,614,625 9,014,125 (5,393,000) 13,924,875 6,999,875
Ending Balance     35,731,875 34,042,250 25,427,625 16,413,500 35,731,875 21,807,000
Private Placement                
Class of Warrant or Right [Line Items]                
Beginning Balance     11,904,750 8,824,500 5,661,000 7,575,750 7,575,750 0
Initial measurement   4,650,000           4,650,000
Change in valuation inputs or other assumptions     582,750 3,080,250 3,163,500 (1,914,750) 4,911,750 2,414,250
Ending Balance     12,487,500 11,904,750 8,824,500 5,661,000 12,487,500 7,575,750
Public Warrants                
Class of Warrant or Right [Line Items]                
Beginning Balance     22,137,500 16,603,125 10,752,500 14,231,250 14,231,250 0
Initial measurement   $ 8,387,500           8,387,500
Change in valuation inputs or other assumptions     1,106,875 5,534,375 5,850,625 (3,478,750) 9,013,125 4,585,625
Ending Balance     $ 23,244,375 $ 22,137,500 $ 16,603,125 $ 10,752,500 $ 23,244,375 14,231,250
Over-Allotment Option                
Class of Warrant or Right [Line Items]                
Initial measurement $ 1,769,625             1,769,625
Over-Allotment Option | Private Placement                
Class of Warrant or Right [Line Items]                
Initial measurement 511,500             511,500
Over-Allotment Option | Public Warrants                
Class of Warrant or Right [Line Items]                
Initial measurement $ 1,258,125             $ 1,258,125