Foreign Exchange Forward Contracts (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Derivative [Line Items]
Foreign currency transaction realized (loss) gain	$ (1.0)	$ 0.4	$ (1.1)	$ (0.1)
Not Designated as Hedging Instrument | Forward Contracts
Derivative [Line Items]
Notional principal amount of forward foreign currency contracts	6.7		6.7
Other non-cash charges	$ 0.1
Maximum maturity on forward foreign currency contracts			60 days