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The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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Nominal or face amount used to calculate payments on the derivative asset.

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Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Derivatives and Hedging Activities - Narrative (Details) lb in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2021 USD ($) lb	Mar. 31, 2020 USD ($)	Mar. 31, 2021 USD ($) lb	Mar. 31, 2020 USD ($)	Jun. 30, 2020 USD ($)
Fair value of derivatives
Total asset derivatives	$ 15,600,000		$ 15,600,000
Total liability derivatives	8,500,000		8,500,000
Cash collateral held by counterparties	$ 0		0		$ 0
Net derivative gains included in AOCI expected to be reclassified into earnings			3,800,000
Interest Rate Swaps
Fair value of derivatives
Derivative, gain on derivative			$ 2,300,000
Cash flow hedges \| Commodity contracts
Fair value of derivatives
Amounts of raw materials to be purchased from forward contracts (in pounds) \| lb	7.9		7.9
Fair value hedging \| Interest Rate Swaps
Fair value of derivatives
Total notional amounts of interest rate contracts	$ 0.0		$ 0.0		$ 150,000,000.0
Derivative, gain on derivative			2,300,000
Interest expense \| Cash flow hedges \| Interest Rate Swaps
Fair value of derivatives
Interest rate swaps net gains (losses)	100,000	$ 100,000	300,000	$ 300,000
Interest expense \| Fair value hedging \| Interest Rate Swaps
Fair value of derivatives
Interest rate swaps net gains (losses)	$ 0	$ 600,000	$ 400,000	$ 700,000