Goodwill Allocated, Percentage

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- Definition

Goodwill Impairment Testing, Perpetual Growth Rate, Percentage

+ References

No definition available.

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- Definition

Goodwill Impairment Testing, Weighted Average Cost of Capital, Percentage

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

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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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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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- Definition

Amount of accumulated impairment loss for 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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- 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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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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.

+ References

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Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, resulting from a business combination.

+ References

No definition available.

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Goodwill and Identifiable Intangible Assets - Narrative (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill and Intangible Assets[Line Items]
Goodwill	$ 834,102,000us-gaap_Goodwill				$ 834,825,000us-gaap_Goodwill				$ 834,102,000us-gaap_Goodwill	$ 834,825,000us-gaap_Goodwill	$ 566,588,000us-gaap_Goodwill
Goodwill acquired										268,300,000us-gaap_GoodwillAcquiredDuringPeriod
Non-cash goodwill impairment charge									0us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss
Non-cash expense for impairment of identifiable intangible assets	1,471,000	0	0	0	0	0	0	0	1,471,000	0	0
Non-cash impairment charge of finite-lived intangible assets									0	0	0
Accumulated impairment charge											210,600,000
Indefinite-lived intangible asset acquired										228,800,000
Amortization periods									12 years
Amortization of identifiable intangible assets									37,966,000us-gaap_AmortizationOfIntangibleAssets	31,028,000us-gaap_AmortizationOfIntangibleAssets	29,762,000us-gaap_AmortizationOfIntangibleAssets
Domestic Segments
Goodwill and Intangible Assets[Line Items]
Perpetual growth rate used for annual testing									2.70%
United States Industrial Services
Goodwill and Intangible Assets[Line Items]
Goodwill	384,639,000				384,543,000				384,639,000	384,543,000	116,828,000
Goodwill allocated									46.10%
Weighted average cost of capital used in annual testing for impairment									11.20%
Accumulated impairment charge											71,100,000
United States Building Services
Goodwill and Intangible Assets[Line Items]
Goodwill	228,385,000				229,204,000				228,385,000	229,204,000	244,787,000
Goodwill allocated									27.40%
Weighted average cost of capital used in annual testing for impairment									12.80%
Accumulated impairment charge											139,500,000
Domestic Construction
Goodwill and Intangible Assets[Line Items]
Weighted average cost of capital used in annual testing for impairment									12.20%
United States Mechanical Construction And Facilities Services
Goodwill and Intangible Assets[Line Items]
Goodwill	217,255,000				217,255,000				217,255,000	217,255,000	201,150,000
Goodwill allocated									26.00%
United States Electrical Construction And Facilities Services
Goodwill and Intangible Assets[Line Items]
Goodwill	3,823,000				3,823,000				3,823,000	3,823,000	3,823,000
Goodwill allocated									0.50%
Trade names (amortized)
Goodwill and Intangible Assets[Line Items]
Amortization periods									4 years 9 months
Customer relationships
Goodwill and Intangible Assets[Line Items]
Amortization periods									12 years
Developed technology/Vendor network
Goodwill and Intangible Assets[Line Items]
Amortization periods									12 years 6 months
Non-competition agreements
Goodwill and Intangible Assets[Line Items]
Amortization periods									1 year 9 months
Trade names (amortized)
Goodwill and Intangible Assets[Line Items]
Non-cash expense for impairment of identifiable intangible assets									$ 1,471,000	$ 0	$ 0