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Foreign Exchange Forward Contracts (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Derivative [Line Items]        
Foreign currency transaction realized (loss) gain, less than for the three months ended December 31, 2014 $ 0.1us-gaap_ForeignCurrencyTransactionGainLossRealized $ (1.0)us-gaap_ForeignCurrencyTransactionGainLossRealized $ (0.3)us-gaap_ForeignCurrencyTransactionGainLossRealized $ (1.1)us-gaap_ForeignCurrencyTransactionGainLossRealized
Not Designated as Hedging Instrument | Forward Contracts        
Derivative [Line Items]        
Notional principal amount of forward foreign currency contracts $ 2.3us-gaap_DerivativeAssetNotionalAmount
/ us-gaap_DerivativeByNatureAxis
= us-gaap_ForwardContractsMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember		   $ 2.3us-gaap_DerivativeAssetNotionalAmount
/ us-gaap_DerivativeByNatureAxis
= us-gaap_ForwardContractsMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember		  
Maximum maturity on forward foreign currency contracts     60 days