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v3.26.1

Organization and Significant Accounting Policies (Tables) | 3 Months Ended
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Jun. 30, 2026
Accounting Policies [Abstract] |
Schedule of Reconciliation of Restricted Cash and Restricted Cash - Asbestos | The following table provides a reconciliation of Cash and cash equivalents and Restricted cash and cash equivalents reported within the condensed consolidated balance sheets that sum to the total of the same such amounts shown in the condensed consolidated statements of cash flows:
| June 30, |  | March 31, |  |  |  |
(Millions of U.S. dollars) | 2026 |  | 2026 |  |  |  |
Cash and cash equivalents | $ | 289.9 |  |  | $ | 269.2 |  |  |  |  |
Restricted cash and cash equivalents | 5.0 |  |  | 5.0 |  |  |  |  |
Restricted cash and cash equivalents — Asbestos | 27.1 |  |  | 70.2 |  |  |  |  |
Total | $ | 322.0 |  |  | $ | 344.4 |  |  |  |  |
Schedule of Reconciliation of Cash and Cash Equivalents - Asbestos | The following table provides a reconciliation of Cash and cash equivalents and Restricted cash and cash equivalents reported within the condensed consolidated balance sheets that sum to the total of the same such amounts shown in the condensed consolidated statements of cash flows:
| June 30, |  | March 31, |  |  |  |
(Millions of U.S. dollars) | 2026 |  | 2026 |  |  |  |
Cash and cash equivalents | $ | 289.9 |  |  | $ | 269.2 |  |  |  |  |
Restricted cash and cash equivalents | 5.0 |  |  | 5.0 |  |  |  |  |
Restricted cash and cash equivalents — Asbestos | 27.1 |  |  | 70.2 |  |  |  |  |
Total | $ | 322.0 |  |  | $ | 344.4 |  |  |  |  |
Schedule of Basic and Dilutive Common Shares Outstanding Used in Determining Net Income Per Share | The following table sets forth the computation of basic and diluted earnings per share:
| Three Months Ended June 30,
(Millions of U.S. dollars and shares, except per share data) | 2026 |  | 2025
Net income | $ | 104.3 |  |  | $ | 62.6 |
Basic common shares outstanding | 580.3 |  |  | 429.9 |
Dilutive effect of stock awards | 4.0 |  |  | 1.2 |
Diluted common shares outstanding | 584.3 |  |  | 431.1 |
Net income per share of common stock: |  |  |
Basic | $ | 0.18 |  |  | $ | 0.15 |
Diluted | $ | 0.18 |  |  | $ | 0.15 |

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