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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2021
Earnings Per Share |
Schedule of computations of basic and diluted net (loss) per share | ​
​ | ​ | ​ | ​ | ​ | ​
​ | Three months ended March 31,
​ | ​ | 2021 |  | ​ | 2020
Numerator: | ​ | ​ | ​ | ​ | ​
Net income | $ | 15,662 | ​ | $ | 450
Adjust for interest expense recognized on convertible senior notes: | ​ | 1,165 | ​ | ​ | —
Net income - diluted | $ | 16,827 | ​ | $ | 450
Denominator: | ​ | ​ | ​ | ​ | ​
Weighted-average shares outstanding — basic | ​ | 34,951,740 |  | ​ | 34,100,688
Effect of dilutive securities: | ​ | ​ | ​ | ​ | ​
Stock options | ​ | 663,921 | ​ | ​ | 553,197
Restricted stock units | ​ | 404,646 | ​ | ​ | 305,341
Performance share units | ​ | 5,201 | ​ | ​ | 8,141
Employee stock purchase plan | ​ | 9,693 | ​ | ​ | 29,681
Warrants | ​ | 199,757 | ​ | ​ | 72,645
Convertible senior notes | ​ | 4,925,134 | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​
Weighted average shares outstanding — diluted | ​ | 41,160,092 | ​ | ​ | 35,069,693
​ | ​ | ​ | ​ | ​ | ​
Earnings per share — basic | $ | 0.45 | ​ | $ | 0.01
Earnings per share — diluted | $ | 0.41 | ​ | $ | 0.01
Schedule of dilutive securities excluded from the calculation of diluted earnings per share | ​
​ | ​ | ​ | ​ | ​
​ |  | Three months ended March 31,
​ |  | 2021 |  | 2020
Stock options | ​ | 1,539,731 | ​ | 2,262,400
Restricted stock units | ​ | 671,854 | ​ | 57,834
Performance share units | ​ | 416,820 | ​ | 267,498
Convertible senior notes | ​ | — | ​ | 4,925,134

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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 http://asc.fasb.org/extlink&oid=6371337&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 http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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