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Supplemental Financial Information (Accrued Liabilities And Other) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Supplemental Financial Information [Abstract] |  |
Personnel costs | $ 55.8 | $ 47.3
Taxes | 41.4 | 45.7
Deferred revenue | 78.0 | 45.8
Operating Lease, Liability, Current | 9.4 | 10.0
Accrued interest | 7.6 | 7.6
Accrued Claims | 27.2 | 17.3
Other | 28.5 | 22.5
Accrued liabilities and other | $ 247.9 | $ 196.2

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