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Derivatives and Hedging (Narratives) (Details) $ in Millions | 3 Months Ended
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Sep. 30, 2021 USD ($) | Jun. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) Contract
Derivative [Line Items] |  |  |
Foreign currency transactions realized gains (losses) | $ 0.3 |  | $ 1.2
Interest Rate Swap |  |  |
Derivative [Line Items] |  |  |
Notional principal amount of forward foreign currency contracts | $ 200.0 |  | $ 200.0
Maturity date | Apr. 30, 2023 |  | Apr. 30, 2023
Unrealized loss on interest rate cash flow hedges | $ (0.9) |  | $ (1.8)
Estimated interest expense over next twelve months | 0.8 |  |
Forward Foreign Currency Contracts |  |  |
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) on Derivatives | 0.4 | $ 0.2 |
Forward Foreign Currency Contracts | Not Designated as Hedging Instrument |  |  |
Derivative [Line Items] |  |  |
Notional principal amount of forward foreign currency contracts | $ 22.6 |  | 7.5
Maximum maturities for contracts | 40 days |  |
Net gains (losses) on forward foreign currency contracts | $ (0.2) |  | $ 0.1
Forward Foreign Currency Contracts | Designated as Hedging Instrument |  |  |
Derivative [Line Items] |  |  |
Notional principal amount of forward foreign currency contracts | $ 11.3 |  |
Maximum maturities for contracts | 12 months |  |
Number of derivative financial instruments | Contract |  |  | 0
Unrealized Gain (Loss) on Derivatives | $ 0.4 |  |

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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4CC -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL109998890-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details
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