Schedule of Unrecognized Tax Benefit Reconciliation (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Reconciliation of Unrecognized Tax Benefits [Line Items]
Beginning balance	$ 30.22us-gaap_UnrecognizedTaxBenefits	$ 24.94us-gaap_UnrecognizedTaxBenefits
Additions based on tax positions related to the current year	11.38	8.51
Reductions for tax positions of prior years	0	0
Foreign currency translation effect	(1.13)	(3.23)
Ending balance	40.47us-gaap_UnrecognizedTaxBenefits	30.22us-gaap_UnrecognizedTaxBenefits
Income taxes paid, see below	(35.86)	(26.37)
Amounts, net of income taxes paid	$ 4.61	$ 3.85

Income Taxes Paid Against Liabilities For Unrecognized Tax Benefits

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Unrecognized Tax Benefits Foreign Currency Translation Effect

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Unrecognized Tax Benefits Net Of Income Taxes Paid

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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-Publisher FASB

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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