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Derivatives and Hedging Activities - Effect of Derivative Instruments on Condensed Consolidated Statements of Operations (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Derivative Instruments Gain Loss [Line Items] |  |  |
Amount of Gain (Loss) Recognized in Earnings on Derivatives | $ 79.0 | $ 17.7 | $ (5.7)
Designated as Hedging Instruments [Member] | Cash Flow Hedge [Member] |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |
Amount of Gain (Loss) Recognized in Earnings on Derivatives | 46.6 | 15.5 | 2.8
Designated as Hedging Instruments [Member] | Cash Flow Hedge [Member] | Foreign Currency Forward Contracts [Member] |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |
Amount of Gain (Loss) Recognized in Earnings on Derivatives | 9.6 | 1.9 | 2.7
Designated as Hedging Instruments [Member] | Cash Flow Hedge [Member] | Interest Rate and Currency Swap [Member] |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |
Amount of Gain (Loss) Recognized in Earnings on Derivatives | 36.9 | 13.5 |
Designated as Hedging Instruments [Member] | Cash Flow Hedge [Member] | Treasury Lock [Member] |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |
Amount of Gain (Loss) Recognized in Earnings on Derivatives | 0.1 | 0.1 | 0.1
Designated as Hedging Instruments [Member] | Fair Value Hedges [Member] | Interest Rate Swaps [Member] |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |
Amount of Gain (Loss) Recognized in Earnings on Derivatives | 0.4 | 1.8 |
Not Designated as Hedging Instruments [Member] | Foreign Currency Forward Contracts [Member] |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |
Amount of Gain (Loss) Recognized in Earnings on Derivatives | $ 32.0 | $ 0.4 | $ (8.5)

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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