Foreign Exchange Forward Contracts (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014
Derivative [Line Items]
Foreign currency transaction realized (loss) gain	$ (0.1)	$ (0.1)	$ (1.2)
Not Designated as Hedging Instrument | Forward Contracts
Derivative [Line Items]
Notional principal amount of forward foreign currency contracts	$ 7.2		$ 7.2
Maximum maturity on forward foreign currency contracts			60 days