Derivatives and Hedging Activities - Narrative (Details) lb in Millions	12 Months Ended
	Jun. 30, 2021 USD ($) lb	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative contracts on a gross basis	$ 17,900,000
Derivative contracts liability on a gross basis	7,300,000
Cash collateral held by counterparties	0
Derivative gains included in AOCI	$ 6,100,000
Commodity contracts | Cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amounts of raw materials to be purchased from forward contracts (in lbs) | lb	6.8
Forward interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain on derivative	$ 2,300,000
Forward interest rate swaps | Cash flow hedges | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (loss) recorded recognized in interest expense	400,000	$ 300,000	$ 300,000
Forward interest rate swaps | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Total notional amounts of interest rate contracts	0.0	150,000,000.0
Derivative, gain on derivative	2,300,000
Forward interest rate swaps | Fair Value Hedging | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (loss) recorded recognized in interest expense	$ 400,000	$ 1,400,000	$ (200,000)