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Earnings Per Share Attributable to Common Stockholders (Tables) | 3 Months Ended
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Mar. 31, 2023
Earnings Per Share Attributable to Common Stockholders |
Computation of Basic and Diluted Earnings Per Share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended
​ | ​ | March 31,
​ | ​ | 2023 |  | 2022
Net (loss) income available to common stockholders | ​ | $ | (34.2) | ​ | $ | 178.1
​ | ​ | ​ | ​ | ​ | ​ | ​
Denominator: | ​ | ​ | ​ | ​ | ​ | ​
Basic weighted average share outstanding | ​ | ​ | 120,487,251 | ​ | ​ | 110,647,700
Effect of dilutive securities: | ​ | ​ | ​ | ​ | ​ | ​
Share units | ​ | ​ | — | ​ | ​ | 450,259
Stock options | ​ | ​ | — | ​ | ​ | 557,902
Diluted average shares outstanding | ​ | ​ | 120,487,251 | ​ | ​ | 111,655,861
​ | ​ | ​ | ​ | ​ | ​ | ​
Net (loss) income per share attributable to common shares: | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | (0.28) | ​ | $ | 1.61
Diluted | ​ | $ | (0.28) | ​ | $ | 1.60
​
Schedule of anti-dilutive securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended
​ | ​ | March 31,
​ | ​ | 2023 | ​ | ​ | 2022
Share units | ​ | ​ | 631,409 | ​ | ​ | —
Stock options | ​ | ​ | 541,082 | ​ | ​ | —
Preferred stock (as converted to common stock) | ​ | ​ | 6,775,252 | ​ | ​ | —
Total | ​ | ​ | 7,947,743 | ​ | ​ | —

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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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