Quarterly report pursuant to Section 13 or 15(d)

Private Placement - Additional Information (Detail)

v3.19.3.a.u2
Private Placement - Additional Information (Detail) - USD ($)
3 Months Ended
Nov. 13, 2019
Nov. 05, 2019
Sep. 30, 2018
Stock issued during period, shares, new issues     $ 25,000
Subsequent Event | Private Placement | Warrant      
Stock issued during period, shares, new issues   7,500,000  
Shares issued, price per share   $ 1.00  
Stock issued during period, shares, new issues   $ 7,500,000  
Exercise price of warrants $ 11.50    
Number of shares of common stock issuable on exercise of each warrant 1    
Subsequent Event | Additional Private Placement | Warrant      
Stock issued during period, shares, new issues 825,000    
Stock issued during period, shares, new issues $ 825,000