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Derivative Instruments - Schedule of Notional Volumes of Derivative Instruments (Details) - lb
lb in Thousands
Sep. 30, 2021
Jun. 30, 2021
Derivative [Line Items]    
Derivative, Nonmonetary Notional Amount 20,499 21,511
Cash Flow Hedging | Designated as Hedging Instrument    
Derivative [Line Items]    
Derivative, Nonmonetary Notional Amount 16,369 14,625
Cash Flow Hedging | Not Designated as Hedging Instrument | Long    
Derivative [Line Items]    
Derivative, Nonmonetary Notional Amount 4,130 6,886