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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2022
Earnings Per Share |
Schedule of computations of basic and diluted net (loss) per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Three Months Ended September 30, | ​ | Nine Months Ended September 30,
​ | 2022 | ​ | 2021 |  | 2022 | ​ | 2021
Numerator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income (loss) | $ | 457 | ​ | $ | 8,046 | ​ | $ | (17,803) | ​ | $ | 96,551
Adjustment for interest expense recognized on convertible senior notes: | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 3,504
Net income (loss) - diluted | $ | 457 | ​ | $ | 8,046 | ​ | $ | (17,803) | ​ | $ | 100,055
Denominator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average shares outstanding — basic | ​ | 34,058,802 |  | ​ | 35,373,909 | ​ | ​ | 33,912,832 |  | ​ | 35,210,966
Effect of dilutive securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Stock options | ​ | 191,454 | ​ | ​ | 435,099 | ​ | ​ | — | ​ | ​ | 564,171
Restricted stock units | ​ | 320,063 | ​ | ​ | 333,572 | ​ | ​ | — | ​ | ​ | 405,632
Employee stock purchase plan | ​ | — | ​ | ​ | 1,829 | ​ | ​ | — | ​ | ​ | 3,403
Warrants | ​ | — | ​ | ​ | 116,765 | ​ | ​ | — | ​ | ​ | 164,884
Convertible senior notes | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 4,925,134
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average shares outstanding — diluted | ​ | 34,570,319 | ​ | ​ | 36,261,174 | ​ | ​ | 33,912,832 | ​ | ​ | 41,274,190
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Earnings (loss) per share — basic | $ | 0.01 | ​ | $ | 0.23 | ​ | $ | (0.52) | ​ | $ | 2.74
Earnings (loss) per share — diluted | $ | 0.01 | ​ | $ | 0.22 | ​ | $ | (0.52) | ​ | $ | 2.42
Schedule of dilutive securities excluded from the calculation of diluted earnings per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Three Months Ended September 30, | ​ | Nine Months Ended September 30,
​ | 2022 |  | 2021 |  | 2022 |  | 2021
Stock options | 1,061,235 | ​ | 1,433,791 | ​ | 2,156,501 | ​ | 1,360,024
Restricted stock units | 523,991 | ​ | 694,694 | ​ | 1,960,160 | ​ | 50,450
Performance share units | 447,770 | ​ | 353,100 | ​ | 447,770 | ​ | 353,100
Employee stock purchase plan | 11,553 | ​ | — | ​ | — | ​ | —
Warrants | 1,041,667 | ​ | — | ​ | 1,041,667 | ​ | —
Convertible senior notes | 4,925,134 | ​ | 4,925,134 | ​ | 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 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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