Contract with Customers - Contract Cost (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Current deferred mobilization and contract preparation costs	$ 38.4	$ 17.2
Non-current deferred mobilization and contract preparation costs	17.1	4.4
Total deferred mobilization and contract preparation asset	$ 55.5	$ 21.6

Amount of deferred cost, excluding capitalized cost related to contract with customer; classified as noncurrent.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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-Subparagraph (SX 210.9-03(10))
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
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-Subparagraph (SX 210.5-02(17))
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant