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Derivative Financial Instruments - Schedule of Notional Amounts of Outstanding Derivative Positions (Details) - lb lb in Thousands | Dec. 31, 2015 | Jun. 30, 2015
--- | --- | ---
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | 41,094 | 34,242
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | 39,675 | 32,288
Cash Flow Hedging [Member] | Derivative Instruments Not Designated as Accounting Hedges [Member] |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | 1,419 | 1,954

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- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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