Represents the number of acquisitions.

No definition available.

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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 consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting 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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DIVESTITURES AND BUSINESS COMBINATIONS (Details 3) $ in Millions	12 Months Ended	24 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($) entity	Dec. 31, 2013 USD ($)
Acquisitions [Line Items]
Goodwill	$ 813.2	$ 840.4	$ 1,571.0
2014 Acquisitions
Acquisitions [Line Items]
Goodwill increase	$ 19.1
Energy Services
Acquisitions [Line Items]
Total purchase price		$ 627.8
Number of acquisitions \| entity		7
Minimum
Acquisitions [Line Items]
Useful life (years)	3 years
Minimum \| Customer contracts and relationships
Acquisitions [Line Items]
Useful life (years)	13 years
Minimum \| Covenants not to compete
Acquisitions [Line Items]
Useful life (years)	3 years
Maximum
Acquisitions [Line Items]
Useful life (years)	34 years
Maximum \| Customer contracts and relationships
Acquisitions [Line Items]
Useful life (years)	23 years
Maximum \| Covenants not to compete
Acquisitions [Line Items]
Useful life (years)	5 years