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NET INCOME (LOSS) PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2022
Earnings Per Share [Abstract] |
Schedule of computation of basic and diluted loss per share | The following table sets forth the computation of basic and diluted net income per common share for the three and six months ended June 30, 2022 and 2021 (in thousands, except per share amounts):
| Three Months Ended June 30, |  | Six Months Ended June 30,
2022 |  | 2021 |  | 2022 |  | 2021
Numerator: |  |  |  |  |  |  |
Net income—basic | $ | 19,876 |  |  | $ | 19,081 |  |  | $ | 26,704 |  |  | $ | 29,450 |
ASU 2020-06 convertible notes if-converted method adjustment | 1,039 |  |  | — |  |  | 2,078 |  |  | — |
Adjusted net income—diluted | 20,915 |  |  | 19,081 |  |  | 28,782 |  |  | 29,450 |
Denominator: |  |  |  |  |  |  |
Weighted average common shares outstanding—basic | 45,501 |  |  | 44,145 |  |  | 45,185 |  |  | 43,989 |
Computation of diluted securities: |  |  |  |  |  |  |
ASU 2020-06 convertible notes if-converted method adjustment | 5,607 |  |  | — |  |  | 5,607 |  |  | — |
Dilutive effect of stock options | 1,016 |  |  | 1,062 |  |  | 1,106 |  |  | 1,284 |
Dilutive effect of RSUs | 347 |  |  | 381 |  |  | 360 |  |  | 426 |
Dilutive effect of conversion premium on the 2022 Notes | — |  |  | — |  |  | — |  |  | 76 |
Dilutive effect of ESPP purchase options | 7 |  |  | 4 |  |  | 4 |  |  | 4 |
Weighted average common shares outstanding—diluted | 52,478 |  |  | 45,592 |  |  | 52,262 |  |  | 45,779 |
Net income per share: |  |  |  |  |  |  |
Basic net income per common share | $ | 0.44 |  |  | $ | 0.43 |  |  | $ | 0.59 |  |  | $ | 0.67 |
Diluted net income per common share | $ | 0.40 |  |  | $ | 0.42 |  |  | $ | 0.55 |  |  | $ | 0.64 |
Schedule of potential dilutive effect of the securities excluded from the calculation of diluted loss per share | The following table summarizes the outstanding stock options, RSUs and convertible senior notes that were excluded from the diluted net income per common share calculation because the effects of including these potential shares were antidilutive in the periods presented (in thousands):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2022 |  | 2021 |  | 2022 |  | 2021
Weighted average number of stock options | 1,948 |  |  | 2,088 |  |  | 1,855 |  |  | 1,489 |
Convertible senior notes | — |  |  | — |  |  | 1,196 |  |  | — |
Weighted average number of RSUs | 31 |  |  | 26 |  |  | 24 |  |  | 14 |
Total | 1,979 |  |  | 2,114 |  |  | 3,075 |  |  | 1,503 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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