Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Jun. 30, 2012
Terms of foreign currency hedging contracts, maximum	3 years
Notional amount of foreign currency hedging contracts held	$ 395.8		$ 334.7
Net gain (loss) recognized on foreign currency instruments	1.1	(5.8)
Credit exposure of foreign currency derivatives	$ 10.7		$ 14.6