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Earnings Per Common Share | 6 Months Ended
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Jun. 30, 2024
Earnings Per Share [Abstract] |
Earnings Per Common Share | Earnings Per Common Share The following table summarizes the computation of basic and diluted earnings per common share for the periods presented (in millions, except per share data):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Earnings per common share—basic |  |  |  |  |  |  |
Net income | $ | 62.1 |  |  | $ | 117.4 |  |  | $ | 68.6 |  |  | $ | 142.4 |
Weighted-average common shares outstanding—basic | 183.5 |  |  | 185.2 |  |  | 183.6 |  |  | 185.2 |
Earnings per common share—basic | $ | 0.34 |  |  | $ | 0.63 |  |  | $ | 0.37 |  |  | $ | 0.77 |
Earnings per common share—diluted |  |  |  |  |  |  |
Net income | $ | 62.1 |  |  | $ | 117.4 |  |  | $ | 68.6 |  |  | $ | 142.4 |
Interest expense attributable to convertible notes, net of tax | 1.7 |  |  | 1.6 |  |  | 3.3 |  |  | 3.2 |
Net income attributable to earnings per common share—diluted | $ | 63.8 |  |  | $ | 119.0 |  |  | $ | 71.9 |  |  | $ | 145.6 |
Weighted-average common shares outstanding—basic | 183.5 |  |  | 185.2 |  |  | 183.6 |  |  | 185.2 |
Incremental shares for assumed conversion of Convertible Notes | 14.7 |  |  | 14.7 |  |  | 14.7 |  |  | 14.7 |
Outstanding options, restricted stock units and performance share units | 1.4 |  |  | 1.4 |  |  | 1.1 |  |  | 1.5 |
Weighted-average common shares outstanding—diluted | 199.6 |  |  | 201.3 |  |  | 199.4 |  |  | 201.4 |
Earnings per common share—diluted | $ | 0.32 |  |  | $ | 0.59 |  |  | $ | 0.36 |  |  | $ | 0.72 |
Anti-Dilutive Options and Restricted Stock Units For the three and six months ended June 30, 2024, approximately 1.7 million and 2.1 million securities outstanding, respectively, comprised of stock options and restricted stock units, were excluded from the calculation of diluted earnings per common share as they would be anti-dilutive. For the three and six months ended June 30, 2023, approximately 1.3 million securities outstanding, comprised of stock options and restricted stock units, were excluded from the calculation of diluted earnings per common share as they would be anti-dilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/260/tableOfContent Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-3 + Details
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