XML 187 R144.htm IDEA: XBRL DOCUMENT v3.20.4
Subsequent Events - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
2 Months Ended 12 Months Ended
Feb. 12, 2021
Feb. 17, 2021
Dec. 31, 2020
Dec. 31, 2018
Feb. 09, 2021
Subsequent Event [Line Items]          
Warrant exercised     (11,750,000)    
Convertible note payment received       $ 460,269  
Subsequent Event [Member]          
Subsequent Event [Line Items]          
Warrant exercised   12,666,000      
Warrant exercise price   $ 5.95      
Proceeds from warrant exercises   $ 75,363      
Warrants outstanding   $ 80,000      
Prepayment and early termination of convertible note         $ 2,500
Convertible note payment received $ 2,500