Total costs related to services rendered by an entity during the reporting period.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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-Paragraph 2

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-Name Accounting Standards Codification

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Amount of each individual error being corrected in the correcting adjustment.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 250

-SubTopic 10

-Section S99

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-Subparagraph (SAB TOPIC 1.N.Q3)

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.4)

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Background and Basis for Presentation: Revision of Prior Period Financial Statements (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Cost of services	$ 680.0us-gaap_CostOfServices	$ 657.9us-gaap_CostOfServices	$ 2,773.3us-gaap_CostOfServices	$ 2,541.2us-gaap_CostOfServices	$ 2,735.7us-gaap_CostOfServices
Selling, general and administrative	225.0	238.9	929.8	874.3	923.8
Cost of services \| Scenario, Previously Reported [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Immaterial Error Correction		644.6	2,719.3	2,492.1	2,692.2
Cost of services \| Restatement Adjustment [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Immaterial Error Correction		13.3	54.0	49.1	43.5
Selling, general and administrative \| Scenario, Previously Reported [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Immaterial Error Correction		252.2	983.8	923.4	967.3
Selling, general and administrative \| Restatement Adjustment [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Immaterial Error Correction		$ (13.3)	$ (54.0)	$ (49.1)	$ (43.5)