Derivative Financial Instruments and Hedging Activities (Details) (Not designated as hedging instruments, USD $) In Millions, unless otherwise specified	Jun. 30, 2013
Open derivative instruments
Notional amounts of outstanding forward foreign exchange contracts	$ 124.6
Sell Euros
Open derivative instruments
Notional amounts of outstanding forward foreign exchange sale contracts to buy dollars	79.7
Sell Australian dollars
Open derivative instruments
Notional amounts of outstanding forward foreign exchange sale contracts to buy dollars	19.6
United Kingdom, Pounds
Open derivative instruments
Notional amounts of outstanding forward foreign exchange sale contracts to buy dollars	$ 13.0

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

Name:	us-gaap_NotionalAmountOfForeignCurrencyDerivativeSaleContracts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant