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v3.25.1

Lines of Credit and Financing Arrangements (Outstanding Debt Obligations) (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Debt Instrument [Line Items] |  |
Commercial paper | $ 0.0 |
Current maturities of long-term debt: |  |
Finance lease obligations | 15.4 | $ 14.9
Debt issuance costs | (0.2) | (0.4)
Total current maturities of long-term debt | 315.2 | 314.5
Long-Term Debt: |  |
Finance lease obligations | 40.0 | 39.5
Debt issuance costs | (5.8) | (6.4)
Total long-term debt | 834.2 | 833.1
Total debt | 1,149.4 | 1,147.6
Senior Unsecured Notes |  |
Current maturities of long-term debt: |  |
Senior unsecured notes | 300.0 | 300.0
Long-Term Debt: |  |
Domestic credit facility and senior unsecured notes | $ 800.0 | $ 800.0

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