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Derivatives and Hedging (Narratives) (Details)
$ in Millions
3 Months Ended
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