Significant Accounting Policies - Summary of Liabilities Related to Integration Plans (Detail) - Jun. 30, 2015 - USD ($) $ in Millions	Total
Schedule Of Business Acquisitions Liabilities Related To Integration Plans [Line Items]
Additions	$ 80.4
Cash Payments	0.0
Closing Balance	80.4
Employee Termination Benefits [Member]
Schedule Of Business Acquisitions Liabilities Related To Integration Plans [Line Items]
Additions	64.5
Cash Payments	0.0
Closing Balance	64.5
Contract Terminations [Member]
Schedule Of Business Acquisitions Liabilities Related To Integration Plans [Line Items]
Additions	15.9
Cash Payments	0.0
Closing Balance	$ 15.9

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 5.P.3)

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-Name Accounting Standards Codification

-Topic 420

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-Section S99

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b))

-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

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- Definition

Schedule Of Business Acquisitions Liabilities Related To Integration Plans [Line Items]

+ References

No definition available.

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