Summary of Notional Amounts of Outstanding Foreign Exchange Forward Contracts, Designated as Net Investment Hedges (Detail) In Millions, unless otherwise specified	Dec. 31, 2013 Foreign Currency Forward Contracts To Sell Euros for U S Dollars EUR (€)	Dec. 31, 2012 Foreign Currency Forward Contracts To Sell Euros for U S Dollars EUR (€)	Dec. 31, 2013 Foreign Currency Forward Contracts To Sell Japanese Yen For US Dollars [Member] JPY (¥)	Dec. 31, 2012 Foreign Currency Forward Contracts To Sell Japanese Yen For US Dollars [Member] JPY (¥)
Derivative [Line Items]
Contracts to sell foreign currencies	€ 50.0	€ 50.0	¥ 19,700.0	¥ 0

Aggregate notional amount of foreign currency derivatives to sell a foreign currency. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959

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