XML 104 R70.htm IDEA: XBRL DOCUMENT v3.20.4
Net Income (Loss) Per Share Attributable to Common Shareholders - Schedule of Computation of Basic and Diluted Net (Loss) Income per Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]                      
Net (loss) income $ (107,039) $ (92,439) $ (79,656) $ (69,731) $ 30,542 $ 138,423 $ (53,699) $ (48,408) $ (348,865) $ 66,858 $ (164,981)
Basic weighted-average common shares outstanding 71,282,096 70,143,481 61,420,746 60,847,683 57,395,839 54,829,057 53,188,041 52,093,208 65,949,672 54,392,304 47,964,368
Effect of potentially dilutive securities:                      
Diluted weighted-average common shares outstanding 71,282,096 70,143,481 61,420,746 60,847,683 60,233,927 57,598,901 53,188,041 52,093,208 65,949,672 56,932,798 47,964,368
Basic net (loss) income per common share $ (1.50) $ (1.32) $ (1.30) $ (1.15) $ 0.53 $ 2.52 $ (1.01) $ (0.93) $ (5.29) $ 1.23 $ (3.44)
Diluted net (loss) income per common share $ (1.50) $ (1.32) $ (1.30) $ (1.15) $ 0.51 $ 2.40 $ (1.01) $ (0.93) $ (5.29) $ 1.17 $ (3.44)
Outstanding Options [Member]                      
Effect of potentially dilutive securities:                      
Effect of potentially dilutive securities                   2,406,962  
Unvested Restricted Common Shares [Member]                      
Effect of potentially dilutive securities:                      
Effect of potentially dilutive securities                   133,532