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Derivatives and Hedging Activities - Narrative (Details)
lb in Millions
3 Months Ended
Sep. 30, 2021
USD ($)
lb
Sep. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
Fair value of derivatives      
Total asset derivatives $ 19,200,000    
Total liability derivatives 6,000,000    
Cash collateral held by counterparties 0   $ 0
Net derivative gains included in AOCI expected to be reclassified into earnings $ 8,400,000    
Commodity contracts | Cash flow hedges      
Fair value of derivatives      
Amounts of raw materials to be purchased from forward contracts (in pounds) | lb 5.6    
Interest Rate Swaps | Cash flow hedges | Interest expense      
Fair value of derivatives      
Interest rate swaps net gains (losses) $ 100,000 $ 100,000  
Interest Rate Swaps | Fair value hedging      
Fair value of derivatives      
Total notional amounts of interest rate contracts $ 0   $ 0
Interest Rate Swaps | Fair value hedging | Interest expense      
Fair value of derivatives      
Interest rate swaps net gains (losses)   400,000  
Interest Rate Swaps | Fair value hedging | Gain (loss) on extinguishment of debt      
Fair value of derivatives      
Interest rate swaps net gains (losses)   $ 2,300,000