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Other Income, Net (Tables) | 9 Months Ended
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Sep. 30, 2025
Other Income and Expenses [Abstract] |
Other Income, Net | The following table presents the components of Other income, net (in millions of dollars):
|  | Quarter Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Interest income |  | $ | 0.2 |  |  | $ | 0.9 |  |  | $ | 0.6 |  |  | $ | 3.0 |
Net periodic postretirement and postemployment benefit cost |  |  | (1.2 | ) |  |  | (1.5 | ) |  |  | (3.8 | ) |  |  | (3.3 | )
Unrealized gain on equity securities |  |  | 0.3 |  |  |  | 0.2 |  |  |  | 0.4 |  |  |  | 0.5 |
Gain on disposition of non-operating property, plant and equipment |  |  | 10.3 |  |  |  | 4.4 |  |  |  | 10.3 |  |  |  | 3.9 |
Gain on business interruption insurance recoveries 1 |  |  | 1.6 |  |  |  | 4.6 |  |  |  | 6.6 |  |  |  | 15.1 |
All other, net |  |  | 0.2 |  |  |  | 0.1 |  |  |  | 0.3 |  |  |  | (0.1 | )
Other income, net |  | $ | 11.4 |  |  | $ | 8.7 |  |  | $ | 14.4 |  |  | $ | 19.1 |
1. Represents advances against business interruption insurance claims. We recognize such advances in the period in which the insurance proceeds are received or become realizable. During the nine months ended September 30, 2025 and September 30, 2024, we received net cash proceeds of $6.4 million and $13.4 million, respectively.

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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