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NET INCOME (LOSS) PER COMMON SHARE (Tables)
12 Months Ended
Dec. 31, 2021
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Earnings per Common Share
The following table sets forth the computation of basic and diluted income (loss) per common share (common shares in thousands):
Years Ended December 31,
202120202019
Numerator:
Net income (loss), basic$(64,080)$859,100 $(23,848)
Add: Interest on convertible notes— 8,313 — 
Net income (loss), diluted$(64,080)$867,413 $(23,848)
Denominator:
Weighted-average common shares outstanding, basic182,852 180,804 179,039 
Effect of dilutive securities:
Options to purchase common stock— 1,543 — 
Common stock issuable under the 2027 notes— 2,874 — 
Common stock issuable under the 2024 notes— 3,970 — 
Unvested RSUs— 1,938 — 
Common stock potentially issuable for ESPP purchases— 353 — 
The Company's common stock held by the NQDC— 196 — 
Weighted-average common shares outstanding, diluted182,852 191,678 179,039 
Net income (loss) per common share, basic$(0.35)$4.75 $(0.13)
Net income (loss) per common share, diluted$(0.35)$4.53 $(0.13)
Schedule Of Shares Excluded From Computation of Basic and Diluted Net Loss Per Share
In addition to the equity instruments included in the table above, the table below presents potential shares of common stock that were excluded from the computation of basic and diluted income (loss) per common share as they were anti-dilutive (in thousands):
Years Ended December 31,
202120202019
Options to purchase common stock6,450 5,287 7,264 
Common stock issuable under the 2027 Notes4,365 — — 
Common stock issuable under the 2024 Notes3,970 — 3,970 
Common stock issuable under the 2020 Notes— — 3,983 
Unvested RSUs5,225 2,235 3,956 
Common stock potentially issuable for ESPP purchases594 314 587 
The Company's common stock held by the NQDC181 — 205 
Total number of potentially issuable shares20,785 7,836 19,965