Derivative Instruments - Schedule of Notional Volumes of Derivative Instruments (Details) - lb lb in Thousands	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	48,183	43,459
Derivative, Term of Contract	18 months
Derivative Instruments, Percentage Designated As Cash Flow Hedges	87.00%	94.00%
Cash Flow Hedging \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	42,113	40,913
Cash Flow Hedging \| Not Designated as Hedging Instrument \| Long [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	6,070	2,546

Derivative Instruments, Percentage Designated As Cash Flow Hedges

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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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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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