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Retirement and Other Postretirement Benefit Plans (Tables) | 9 Months Ended
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Sep. 30, 2025
Defined Benefit Retirement Plans |
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items] |
Schedule of Net Periodic Benefit Costs of Defined Benefit Retirement Plans | Net periodic benefit costs of our defined benefit retirement plans for the quarters and nine months ended September 30, 2025 and 2024 were as follows:
|  | Quarters Ended September 30, |  |  | Nine Months Ended September 30, |
(In millions) |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
U.S. Nonqualified Defined Benefit Retirement Plans |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Interest cost |  |  | 0.2 |  |  |  | 0.3 |  |  |  | 0.6 |  |  |  | 0.7 |
Net amortization |  |  | — |  |  |  | (0.2 | ) |  |  | — |  |  |  | (0.4 | )
Net periodic benefit cost |  | $ | 0.2 |  |  | $ | 0.1 |  |  | $ | 0.6 |  |  | $ | 0.3 |
Schedule of Amounts Recognized on Balance Sheet |
(In millions) |  | September 30, 2025 |  |  | December 31, 2024 |
Amounts recognized on the balance sheet for U.S. nonqualified defined benefit retirement plans: |  |  |  |  |  |
Accrued liabilities |  | $ | 1.3 |  |  | $ | 16.2 |
Other non-current liabilities |  |  | 2.8 |  |  |  | 3.9 |
Total accrued benefit |  | $ | 4.1 |  |  | $ | 20.1 |
Defined Benefit Retirement Plans | Non qualified |
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items] |
Schedule of Net Periodic Benefit Costs of Defined Benefit Retirement Plans |
|  | Quarters Ended September 30, |  |  | Nine Months Ended September 30, |
(In millions) |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
European Defined Benefit Retirement Plans |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 0.1 |  |  | $ | 0.2 |  |  | $ | 0.4 |  |  | $ | 0.5 |
Interest cost |  |  | 0.2 |  |  |  | 0.1 |  |  |  | 0.4 |  |  |  | 0.4 |
Expected return on plan assets |  |  | (0.1 | ) |  |  | — |  |  |  | (0.1 | ) |  |  | (0.1 | )
Net amortization and deferral |  |  | 0.1 |  |  |  | 0.0 |  |  |  | 0.2 |  |  |  | 0.1 |
Net periodic benefit cost |  | $ | 0.3 |  |  | $ | 0.3 |  |  | $ | 0.9 |  |  | $ | 0.9 |
Schedule of Amounts Recognized on Balance Sheet |
(In millions) |  | September 30, 2025 |  |  | December 31, 2024 |
Amounts recognized on the balance sheet for European defined benefit retirement plans: |  |  |  |  |  |
Accrued liabilities |  |  | 1.3 |  |  |  | 1.0 |
Other non-current liabilities |  |  | 13.0 |  |  |  | 11.9 |
Total accrued benefit |  | $ | 14.2 |  |  | $ | 12.9 |
Postretirement Health Care and Life Insurance Benefit Plans |
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items] |
Schedule of Amounts Recognized on Balance Sheet |
(In millions) |  | September 30, 2025 |  |  | December 31, 2024 |
Amounts recognized on the balance sheet: |  |  |  |  |  |
Accrued liabilities |  | $ | 0.2 |  |  | $ | 0.2 |
Other non-current liabilities |  |  | 0.7 |  |  |  | 0.6 |
Total accrued benefit |  | $ | 0.9 |  |  | $ | 0.8 |

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- Definition Tabular disclosure of the amounts that are recognized in the balance sheet (or statement of financial position) for pension plans and/or other employee benefit plans, showing separately the assets and current and noncurrent liabilities (if applicable) recognized. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (q) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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