Property, Plant, and Equipment, Number Impaired

No definition available.

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- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a),(d))
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

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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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- Definition

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher FASB
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(8))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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-Section S99
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Stated as a percentage, the estimated or actual value of the asset at the end of its useful life or when it is no longer serviceable (cannot be used for its original purpose) divided by its [historical] capitalized cost.

+ References

No definition available.

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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- Definition

The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230

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-URI http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and Depreciation and Impairments (Details) $ in Millions			12 Months Ended
	Sep. 30, 2016 drilling_unit	Sep. 30, 2015 drilling_unit	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($) drilling_unit	Sep. 29, 2016 USD ($)
Property, Plant and Equipment [Line Items]
Property value			$ 6,201.0	$ 6,552.7
Asset impairment charges			$ 0.0	0.0	$ 34.3
Jack-up Rigs [Member]
Property, Plant and Equipment [Line Items]
Number of drilling units impaired \| drilling_unit	5	10			5
Asset impairment charges					$ 34.3
Jack-up drilling rigs: Hulls [Member]
Property, Plant and Equipment [Line Items]
Salvage Value			10.00%
Jack-up drilling rigs: Legs [Member]
Property, Plant and Equipment [Line Items]
Salvage Value			10.00%
Jack-up drilling rigs: Quarters [Member]
Property, Plant and Equipment [Line Items]
Salvage Value			10.00%
Life (in years)			25 years
Jack-up Rigs: Impaired [Member]
Property, Plant and Equipment [Line Items]
Property value					43.6	$ 43.6
Drillships: Hulls [Member]
Property, Plant and Equipment [Line Items]
Salvage Value			10.00%
Life (in years)			35 years
Drill pipe and tubular equipment [Member]
Property, Plant and Equipment [Line Items]
Salvage Value			10.00%
Life (in years)			4 years
Minimum [Member] \| Jack-up drilling rigs: Hulls [Member]
Property, Plant and Equipment [Line Items]
Life (in years)			25 years
Minimum [Member] \| Jack-up drilling rigs: Legs [Member]
Property, Plant and Equipment [Line Items]
Life (in years)			25 years
Minimum [Member] \| Jack-up drilling rigs: Drilling equipment [Member]
Property, Plant and Equipment [Line Items]
Salvage Value			0.00%
Life (in years)			2 years
Minimum [Member] \| Drillships: Drilling equipment [Member]
Property, Plant and Equipment [Line Items]
Salvage Value			0.00%
Life (in years)			2 years
Minimum [Member] \| Other property and equipment [Member]
Property, Plant and Equipment [Line Items]
Life (in years)			3 years
Maximum [Member] \| Jack-up drilling rigs: Hulls [Member]
Property, Plant and Equipment [Line Items]
Life (in years)			35 years
Maximum [Member] \| Jack-up drilling rigs: Legs [Member]
Property, Plant and Equipment [Line Items]
Life (in years)			30 years
Maximum [Member] \| Jack-up drilling rigs: Drilling equipment [Member]
Property, Plant and Equipment [Line Items]
Salvage Value			10.00%
Life (in years)			25 years
Maximum [Member] \| Drillships: Drilling equipment [Member]
Property, Plant and Equipment [Line Items]
Salvage Value			10.00%
Life (in years)			25 years
Maximum [Member] \| Other property and equipment [Member]
Property, Plant and Equipment [Line Items]
Life (in years)			30 years
Material Charges and Other Operating Items [Member]
Property, Plant and Equipment [Line Items]
Asset impairment charges			$ 0.0	0.0
Material Charges and Other Operating Items [Member] \| Jack-up Rigs [Member]
Property, Plant and Equipment [Line Items]
Asset impairment charges					34.3
Maintenance [Member]
Property, Plant and Equipment [Line Items]
Cost of Goods and Services Sold			$ 139.0	$ 113.0	$ 118.0