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Employee Benefit Plans - Schedule of Rollforward of Change in Fair Value of Level 3 Assets (Detail) - Defined Benefit Pension Plans - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014
Schedule Of Reconciliation Of Changes In Fair Value Of Assets And Liabilities [Line Items] |  |
Fair value at beginning of the year | $ 479.1 |
Fair value at end of year | 430.1 | $ 479.1
Level 3 Inputs |  |
Schedule Of Reconciliation Of Changes In Fair Value Of Assets And Liabilities [Line Items] |  |
Fair value at beginning of the year | 254.1 | 261.5
Gain on assets held at end of year | 6.5 | 24.5
Gain on assets sold during the year | 0.3 | 0.3
Assets purchased | 13.7 | 16.9
Assets sold | (12.4) | (15.2)
Currency exchange rate fluctuations | (26.0) | (33.9)
Fair value at end of year | $ 236.2 | $ 254.1

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- Definition Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=49178875&loc=d3e12355-114930 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of sale of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of increase (decrease) in asset value due to gain (loss) from foreign currency rate fluctuations for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References No definition available. + Details
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- Definition Amount of realized gain (loss) for financial instrument sold during the reporting period which was classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References No definition available. + Details
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- Definition Amount of unrealized gain (loss) for financial instrument held at the measurement date which is classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References No definition available. + Details
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- Definition Schedule of reconciliation of changes in fair value of assets and liabilities. + References No definition available. + Details
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