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Derivatives and Hedging (Narratives) (Details)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Contract
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Contract
Jun. 30, 2021
USD ($)
Derivative [Line Items]          
Foreign currency transactions realized gains (losses) $ 0.3 $ 0.6 $ 0.6 $ (1.9)  
Interest Rate Swap          
Derivative [Line Items]          
Notional principal amount of forward foreign exchange contracts 200.0 200.0 $ 200.0 $ 200.0  
Maturity date     Apr. 30, 2023 Apr. 30, 2023  
Unrealized gain (loss) on interest rate cash flow hedges     $ 0.8 $ (1.3)  
Estimated interest income over next twelve months     0.8    
Forward Foreign Currency Contracts          
Derivative [Line Items]          
Notional principal amount of forward foreign exchange contracts 0.2   0.2   $ 21.8
Unrealized Gain (Loss) on Derivatives     0.1   $ (0.2)
Forward Foreign Currency Contracts | Not Designated as Hedging Instrument          
Derivative [Line Items]          
Notional principal amount of forward foreign exchange contracts 20.2 26.7 $ 20.2 26.7  
Maximum maturities for contracts     40 days    
Net gains (losses) on forward foreign currency contracts (0.1) $ (0.3) $ (0.4) $ 0.5  
Forward Foreign Currency Contracts | Designated as Hedging Instrument          
Derivative [Line Items]          
Notional principal amount of forward foreign exchange contracts $ 0.2   $ 0.2    
Maximum maturities for contracts     12 months    
Number of derivative financial instruments | Contract   0   0  
Forward Foreign Currency Contracts | Designated as Hedging Instrument | Maximum          
Derivative [Line Items]          
Unrealized Gain (Loss) on Derivatives     $ 0.1