Quarterly report pursuant to Section 13 or 15(d)

Net Income (Loss) Per Share - (Details)

v3.20.2
Net Income (Loss) Per Share - (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Sep. 30, 2020
Sep. 30, 2019
Numerator (both basic and diluted)                
Net income (loss) relevant to common stockholders $ (29,184) $ (25,920) $ (7,804) $ 34,397 $ 36,133 $ 69,805 $ (62,908) $ 140,335
Denominator                
Denominator for basic earnings (loss) per share (in shares) 100,897     100,606     100,802 100,423
Denominator for diluted income (loss) per share (in shares) 100,897     103,652     100,802 103,988
Basic income (loss) per common share (in dollars per share) $ (0.29)     $ 0.34     $ (0.62) $ 1.40
Diluted income (loss) per common share (in dollars per share) $ (0.29)     $ 0.33     $ (0.62) $ 1.35
Antidilutive securities excluded from computation of earnings per share, amount (in shares)             6,480 702
Stock options                
Denominator                
Dilutive effect of share based payment (in shares) 0     2,750     0 3,114
Restricted stock units                
Denominator                
Dilutive effect of share based payment (in shares) 0     112     0 268
Performance stock units                
Denominator                
Dilutive effect of share based payment (in shares) 0     184     0 183
Stock options                
Denominator                
Antidilutive securities excluded from computation of earnings per share, amount (in shares)             4,220 702
Restricted stock units                
Denominator                
Antidilutive securities excluded from computation of earnings per share, amount (in shares)             1,218 0
Performance stock units                
Denominator                
Antidilutive securities excluded from computation of earnings per share, amount (in shares)             1,042 0