Derivative Instruments - Schedule of Notional Volumes of Derivative Instruments (Details) - lb lb in Thousands	Mar. 31, 2019	Jun. 30, 2018
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	(39,607)	(43,459)
Cash Flow Hedging | Designated as Hedging Instrument
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	(35,213)	(40,913)
Cash Flow Hedging | Not Designated as Hedging Instrument | Long
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	(4,394)	(2,546)