The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

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The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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Nominal or face amount used to calculate payments on the derivative liability.

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The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations.

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Derivative Financial Instruments - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013	Dec. 01, 2012
Derivative [Line Items]
Derivative Liability, Notional Amount				$ 10,000
Restricted cash	$ 1,002	$ 0
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	(8,900)
Deposits Held At CommodityTrading Accounts
Derivative [Line Items]
Restricted cash	1,000	0
Cash Flow Hedging
Derivative [Line Items]
Net gains recognized in earnings (effective portion)	4,211	1,161	$ 55
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	(14,295)	17,524	(7,921)
Net losses recognized in earnings (ineffective portion)	$ (325)	$ (259)	$ (447)