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Summary of Changes in Gross Unrecognized Tax Benefits (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Balance at beginning of period	$ 34.4	$ 49.4	$ 36.2
Additions based on tax positions related to current year	5.0	5.2	13.8
Additions (reductions) based on tax positions related to prior years	14.3	(18.5)	4.4
Settlements	(6.7)
Statute expirations	(0.8)	(1.8)	(2.6)
Foreign currency translation	(1.0)	0.1	(2.4)
Balance at end of period	$ 45.2	$ 34.4	$ 49.4

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Unrecognized Tax Benefits, Increases (Decreases) Resulting from Prior Period Tax Positions

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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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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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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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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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