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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 |

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- Definition Nominal or face amount used to calculate payments on the derivative asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
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