Related Party Transactions (Details) $ in Millions	3 Months Ended
	Sep. 30, 2015 USD ($) a	Sep. 30, 2014 a
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction | $	$ 56.0
Area of Land	177,000	177,000
Acreage, grazing rights assumed under long-term lease	114,000	114,000
Gain (Loss) on Disposition of Property Plant Equipment | $	$ 2.3