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Earnings per Common Share (Tables) | 9 Months Ended
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Sep. 30, 2024
Earnings per Common Share |
Schedule of computation of income per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​ | Nine months ended
​ | ​ | September 30, | ​ | September 30,
​ |  | 2024 |  | 2023 |  | 2024 |  | 2023
​ | ​ | (in millions, except share data)
Net loss | ​ | $ | (22.4) | ​ | $ | (104.5) | ​ | $ | (48.2) | ​ | $ | (244.2)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic weighted-average shares | ​ |  | 82,053,403 | ​ |  | 80,888,537 | ​ |  | 81,782,166 | ​ |  | 81,797,740
Effect of dilutive securities: | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Restricted stock awards | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Diluted weighted-average shares | ​ |  | 82,053,403 | ​ |  | 80,888,537 | ​ |  | 81,782,166 | ​ |  | 81,797,740
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic and diluted loss per common share | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | (0.27) | ​ | $ | (1.29) | ​ | $ | (0.59) | ​ | $ | (2.99)
Diluted | ​ | $ | (0.27) | ​ | $ | (1.29) | ​ | $ | (0.59) | ​ | $ | (2.99)
​

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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