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Fair Value Measurements (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Jun. 30, 2014
Deferred compensation plan assets $ 3.5us-gaap_DeferredCompensationPlanAssets $ 3.8us-gaap_DeferredCompensationPlanAssets
Other Current Assets [Member]    
Deferred compensation plan assets 1.0us-gaap_DeferredCompensationPlanAssets
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherCurrentAssetsMember		 0.7us-gaap_DeferredCompensationPlanAssets
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherCurrentAssetsMember
Other Assets [Member]    
Deferred compensation plan assets $ 2.5us-gaap_DeferredCompensationPlanAssets
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherAssetsMember		 $ 3.1us-gaap_DeferredCompensationPlanAssets
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherAssetsMember