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Other Noncurrent Assets (Parenthetical) (Detail) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Other Noncurrent Assets Disclosure [Line Items]
Accumulated amortization of identifiable intangibles	$ 117.5	$ 103.6	$ 77.2

X

- Definition

Other Noncurrent Assets Disclosure [Line Items]

+ References

No definition available.

+ Details

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X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 350



-SubTopic 30



-Section 50



-Paragraph 2



-Subparagraph (a)(1)



-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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