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Net Income Per Share (Tables) | 12 Months Ended
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Dec. 31, 2025
Earnings Per Share [Abstract] |
Schedule of Reconciliation of Basic to Diluted Net Income Per Share | The following table reconciles the shares used in the calculation of basic net income per share to those used for diluted net income per share:
(in millions) | 2025 |  | 2024 |  | 2023
Net income | $ | 493.7 |  |  | $ | 492.7 |  |  | $ | 593.4 |
Weighted average common shares outstanding | 72.3 |  |  | 73.0 |  |  | 74.3 |
Dilutive effect of equity awards, based on the treasury stock method | 0.4 |  |  | 0.7 |  |  | 1.0 |
Weighted average shares assuming dilution | 72.7 |  |  | 73.7 |  |  | 75.3 |
Schedule of Repurchase of Common Stock | The below table summarizes share repurchases under this program during the years ended December 31:
| 2025 |  | 2024
Shares repurchased | 552,593 |  |  | 1,583,032 |
Total cost of repurchases ($ in millions) | $ | 134.0 |  |  | $ | 560.9 |
Average price per repurchased share | $ | 242.55 |  |  | $ | 354.30 |

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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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- Definition Schedule Of Common Stock Repurchases + References No definition available. + Details
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