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Income (Loss) Per Common Share (Tables) | 6 Months Ended
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Jun. 30, 2021
Income (Loss) Per Common Share |
Schedule of basic and diluted income (loss) per share and weighted average shares | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended June 30, | ​ | Six months ended June 30, | ​
​ |  | 2021 |  | 2020 |  | 2021 |  | 2020 |
​ | ​ | (in thousands, except per share amounts) | ​
Net income (loss) | ​ | $ | 6,348 | ​ | $ | (8,302) | ​ | $ | 8,842 | ​ | $ | (8,869) | ​
Net income (loss) per common share: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | 0.13 | ​ | $ | (0.17) | ​ | $ | 0.18 | ​ | $ | (0.18) | ​
Diluted | ​ | $ | 0.12 | ​ | $ | (0.17) | ​ | $ | 0.17 | ​ | $ | (0.18) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic weighted average shares outstanding | ​ |  | 48,743 | ​ |  | 48,109 | ​ |  | 48,758 | ​ |  | 48,147 | ​
Dilutive effect of share-based awards | ​ | ​ | 1,707 | ​ | ​ | — | ​ | ​ | 1,553 | ​ | ​ | ​ | ​
Dilutive effect of the 2027 Notes | ​ |  | 3,492 | ​ |  | — | ​ |  | 3,228 | ​ |  | — | ​
Diluted weighted average shares outstanding | ​ |  | 53,942 | ​ |  | 48,109 | ​ |  | 53,539 | ​ |  | 48,147 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Common share equivalents excluded from the diluted weighted average shares outstanding since the Company incurred a net loss and their effect would be antidilutive | ​ | ​ | N/A | ​ | ​ | 712 | ​ | ​ | N/A | ​ | ​ | 671 | ​
Potentially dilutive shares excluded from the diluted calculation as their effect would be antidilutive | ​ | ​ | 449 | ​ | ​ | 1,194 | ​ | ​ | 452 | ​ | ​ | 1,132 | ​
Maximum potential shares to be issued for settlement of the 2023, 2025, and 2027 Notes excluded from the diluted calculation as their effect would be antidilutive due to a net loss or the fact that the conversion value of the Notes did not exceed their principal amount | ​ | ​ | 8,811 | ​ | ​ | 15,354 | ​ | ​ | 8,811 | ​ | ​ | 15,354 | ​

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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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