Forward Exchange Contracts (Details) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2012 Forward Exchange Contracts [Member] USD ($)	Sep. 30, 2012 Forward Exchange Contracts [Member] EUR (€)
Derivative [Line Items]
Total face value of forward exchange contracts		$ 72.7	€ 56.0
Final expiration date of forward exchange contracts	Jan. 31, 2015