Quarterly report pursuant to Section 13 or 15(d)

Loss Per Share - Additional Information (Detail)

v3.21.1
Loss Per Share - Additional Information (Detail) - 4.50 % Convertible Senior Notes - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Earnings Per Share Disclosure [Line Items]    
Interest rate 4.50%  
Weighted average closing share price $ 21.15  
Exercise price   $ 14.35
Common shares issued 32,051  
Convertible senior note, if-converted value in excess of outstanding principal value $ 279,745  
Warrants, per share $ 22.08