Foreign Exchange Forward Contracts (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2012
Derivative [Line Items]
Foreign currency transaction realized gains	$ 0.3
Not Designated as Hedging Instrument | Forward Contracts
Derivative [Line Items]
Notional principal amount of forward foreign currency contracts	$ 12.0
Maximum maturities for contracts (in days)	60 days