Aggregate notional amount of foreign currency derivatives to purchase 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 1B
-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5580258-113959

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 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5579245-113959

Name:	us-gaap_NotionalAmountOfForeignCurrencyDerivativePurchaseContracts
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Summary of Notional Amounts and Fair Value of the Company's Cash Flow Hedges (Parenthetical) (Detail) (Cash Flow Hedging, Foreign Exchange Contract) In Millions	Jun. 30, 2011 CAD	Jun. 30, 2011 CHF	Jun. 30, 2011 DKK	Jun. 30, 2011 SGD	Jun. 30, 2011 TWD	Jun. 30, 2011 AUD	Jun. 30, 2011 KRW	Jun. 30, 2011 MXN	Jun. 30, 2011 NOK	Jun. 30, 2011 EUR (€)	Jun. 30, 2011 GBP (£)	Jun. 30, 2011 JPY (¥)
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Forward sale	32.9		5.2	2.3		7.8	5.8	132.2				¥ 0.9
Forward purchase		12.1			26.7				2.6	€ 1.0	£ 7.1