Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share - Additional Information (Detail)

v3.20.2
Earnings Per Share - Additional Information (Detail) - 4.50 % Convertible Senior Notes - $ / shares
Sep. 30, 2020
Aug. 21, 2020
Earnings Per Share Disclosure [Line Items]    
Interest rate 4.50% 4.50%
Warrants, per share $ 22.08  
Common shares issued 32,051,282