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Derivatives And Hedging Activities (Narrative) (Details) - USD ($)
$ in Millions
9 Months Ended
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Foreign Exchange Forward [Member]      
Derivative [Line Items]      
Notional amount of derivative contracts $ 33.8 $ 24.8 $ 38.7
Cash Flow Hedging [Member] | Interest Rate Swap [Member]      
Derivative [Line Items]      
Notional amount of derivative contracts 370.0    
Derivative, Fair Value, Net 5.4    
Cash Flow Hedging [Member] | Foreign Exchange Forward [Member]      
Derivative [Line Items]      
Net unrealized gain on foreign currency derivatives designated as cash flow hedges $ (1.8)