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Pensions - Narrative (Details) - Pension Plan - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Qualified Plan |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Contribution costs | $ 0 | $ 0 | $ 0 | $ 0
Expected future employer contribution, current fiscal year | 6,000,000.0 |  | 6,000,000.0 |
Nonqualified Plan |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Contribution costs | 200,000 | $ 100,000 | 300,000 | $ 300,000
Expected future employer contribution, current fiscal year | $ 500,000 |  | $ 500,000 |

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