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Supplemental Financial Information (Accrued Liabilities) (Details) - USD ($) $ in Millions | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Supplemental Financial Information [Abstract] |  |
Deferred revenue | $ 84.8 | $ 45.8
Personnel costs | 48.3 | 47.3
Income and other taxes payable | 51.0 | 45.7
Accrued interest | 18.9 | 7.6
Accrued claims | 23.9 | 17.3
Lease liabilities | 9.7 | 10.0
Other | 25.9 | 22.5
Accrued liabilities and other | $ 262.5 | $ 196.2

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