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Inventories - Narrative (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014 | Mar. 31, 2015
Inventory Disclosure [Abstract] |  |  |
Inventory, LIFO Reserve, Effect on Income, Net | $ 0.7 us-gaap_InventoryLIFOReserveEffectOnIncomeNet | $ 0 us-gaap_InventoryLIFOReserveEffectOnIncomeNet | $ 3.2 us-gaap_InventoryLIFOReserveEffectOnIncomeNet

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- Details
Name: | us-gaap_InventoryDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The difference between the change in the inventory reserve representing the cumulative difference in cost between the first in, first out and the last in, first out inventory valuation methods and any LIFO decrement which have been reflected in the statement of income during the period. + References No definition available. + Details
Name: | us-gaap_InventoryLIFOReserveEffectOnIncomeNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration