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Derivative Instruments - Schedule of Notional Volumes of Derivative Instruments (Details) - lb
lb in Thousands
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Derivative [Line Items]    
Derivative, Nonmonetary Notional Amount 44,761 48,183
Derivative, Term of Contract 18 months  
Derivative Instruments, Percentage Designated As Cash Flow Hedges 81.00% 87.00%
Cash Flow Hedging | Designated as Hedging Instrument    
Derivative [Line Items]    
Derivative, Nonmonetary Notional Amount 36,413 42,113
Cash Flow Hedging | Not Designated as Hedging Instrument | Long [Member]    
Derivative [Line Items]    
Derivative, Nonmonetary Notional Amount 8,348 6,070