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- Definition

This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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- Definition

Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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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 of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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Impairment, Restructuring and Other Exit Costs - Narrative (Details) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Restructuring [Line Items]
Restructuring costs				$ 68.9
AMECO
Restructuring [Line Items]
Restructuring costs	$ 5.0		$ 27.0	5.0	$ 54.0
Diversified Services
Restructuring [Line Items]
Impairment of goodwill		$ 169.0		169.0
Impairment of intangible customer relationships		27.0		27.0
Energy Chemicals And Mining Segment
Restructuring [Line Items]
Impairment of equity method investments		86.0		$ 86.0
Technology-Based Intangible Assets
Restructuring [Line Items]
Impairment of information technology assets		$ 16.0
Measurement Input, Long-term Revenue Growth Rate \| Minimum \| Level 3 \| Customer Relationships
Restructuring [Line Items]
Measurement input	0.02			0.02
Measurement Input, Long-term Revenue Growth Rate \| Maximum \| Level 3 \| Customer Relationships
Restructuring [Line Items]
Measurement input	0.055			0.055
Measurement Input, Weighted Average Long-term Revenue Growth Rate \| Level 3 \| Customer Relationships
Restructuring [Line Items]
Measurement input	0.024			0.024
Measurement Input, Weighted Average Cost of Capital \| Level 3 \| Customer Relationships
Restructuring [Line Items]
Measurement input	0.12			0.12
Measurement Input, Customer Attrition Factor \| Level 3 \| Customer Relationships
Restructuring [Line Items]
Measurement input	0.10			0.10