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Supplemental Financial Information (Other Current Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Apr. 30, 2021
Supplemental Financial Information [Abstract]
Deferred mobilization costs	$ 75.3	$ 59.1
Prepaid taxes	49.1	44.6
Prepaid expenses	23.6	17.5
Other	29.2	27.4
Other	$ 177.2	$ 148.6	$ 90.5

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- Definition

Amount of current assets classified as other.

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- Definition

Net amount of other deferred costs capitalized at the end of the reporting period. Does not include deferred finance costs or deferred acquisition costs of insurance companies.

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Amount of asset related to consideration paid in advance for other costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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Other Assets Other Current

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Supplemental Financial Information [Abstract]

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