Accumulated Depreciation, Depletion and Amortization, Jack-Up Rigs

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- Definition

Proceeds from Sale of Property, Plant, and Equipment, Gross

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- Definition

Property Plant And Equipment Depreciation

+ References

No definition available.

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
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-URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
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-Subparagraph (SX 210.5-02(14))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

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- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

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-Publisher FASB
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-Section 50
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Jack-up rigs, net - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Accumulated depreciation, jack-up rigs	$ 482.6	$ 391.1
Accumulated depreciation	5.2	6.5
Depreciation	1.6	2.0	$ 1.9
Gain on disposals	(4.2)	(1.2)	(19.0)
Impairment of non-current assets	131.7	0.0	77.1
Atla
Property, Plant and Equipment [Line Items]
Impairment of non-current assets			30.9
Balder
Property, Plant and Equipment [Line Items]
Impairment of non-current assets			0.8
MSS1
Property, Plant and Equipment [Line Items]
Impairment of non-current assets			18.4
Gyme
Property, Plant and Equipment [Line Items]
Impairment of non-current assets	7.3
Balder
Property, Plant and Equipment [Line Items]
Gain on disposals		$ 0.1
Impairment of non-current assets			$ 27.0
Gyme
Property, Plant and Equipment [Line Items]
Gross proceeds from sale of fixed assets	120.0
Gain on disposals	$ 0.2