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Net Income (Loss) Per Common Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Numerator: |  |  |  |
Net Income (loss), basic and diluted | $ 12,941 | $ (29,183) | $ 30,312 | $ 52,198
Denominator: |  |  |  |
Weighted average common shares outstanding, basic (in shares) | 182,844 | 180,729 | 182,311 | 180,314
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] |  |  |  |
Weighted average common shares outstanding, diluted (in shares) | 185,427 | 180,729 | 185,089 | 184,344
Net income (loss) per common share, basic (in dollars per share) | $ 0.07 | $ (0.16) | $ 0.17 | $ 0.29
Net income (loss) per common share, diluted (in dollars per share) | $ 0.07 | $ (0.16) | $ 0.16 | $ 0.28
Options to purchase common stock |  |  |  |
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] |  |  |  |
Effect of dilutive securities (in shares) | 748 | 0 | 878 | 1,770
Unvested RSUs |  |  |  |
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] |  |  |  |
Effect of dilutive securities (in shares) | 1,365 | 0 | 1,425 | 1,733
Common stock potentially issuable for ESPP purchases |  |  |  |
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] |  |  |  |
Effect of dilutive securities (in shares) | 273 | 0 | 278 | 317
The Company’s common stock held by the NQDC |  |  |  |
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] |  |  |  |
Effect of dilutive securities (in shares) | 197 | 0 | 197 | 210

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