Inventories - Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
	Dec. 31, 2012	Dec. 31, 2012
Inventory Disclosure [Abstract]
Effect of LIFO Inventory Liquidation on Income	$ 0.5
Inventory, LIFO Reserve, Effect on Income, Net		$ 0.5