v3.7.0.1

Amortizable Intangible Assets - Schedule of Carrying Amounts and Accumulated Amortization of Intangible Assets (Detail) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 872.1 | $ 871.9
Accumulated Amortization | (233.0) | (163.0)
Net Carrying Amount | 639.1 | 708.9
Customer Relationships and Platforms [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 745.2 | 745.2
Accumulated Amortization | (197.5) | (137.0)
Net Carrying Amount | 547.7 | 608.2
Other [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 126.9 | 126.7
Accumulated Amortization | (35.5) | (26.0)
Net Carrying Amount | $ 91.4 | $ 100.7

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- 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=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before 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=66006027&loc=d3e16323-109275 + Details
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- Definition Amount after 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=66006027&loc=d3e16323-109275 + Details
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