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Derivatives And Hedging Activities (Effect Of Derivative Financial Instruments On The Consolidated Statements Of Income) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Derivatives Designated As Hedges [Member] | Interest Rate Swap Agreements [Member] | Interest Expense [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss) recorded in accumulated other comprehensive loss $ (3,467) $ 2,562 $ (792) $ 1,136
Gain (loss) reclassified from accumulated other comprehensive loss into earnings 663 (314) 1,395 (1,231)
Derivatives Designated As Hedges [Member] | Interest Rate Swap Agreements [Member] | Selling, General And Administrative Expenses [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss) recognized in earnings from ineffective portion and early de-designation of cash flow hedges 0 0 0 0
Derivatives Designated As Hedges [Member] | Forward Foreign Currency Exchange Contracts [Member] | Cost Of Goods Sold [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss) recorded in accumulated other comprehensive loss 592 0 (2,338) (1,101)
Gain (loss) reclassified from accumulated other comprehensive loss into earnings (713) (283) (1,267) (725)
Derivatives Designated As Hedges [Member] | Forward Foreign Currency Exchange Contracts [Member] | Selling, General And Administrative Expenses [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss) recognized in earnings from ineffective portion and early de-designation of cash flow hedges 0 0 (5)
Derivatives Not Designated As Hedges [Member] | Forward Foreign Currency Exchange Contracts [Member] | Selling, General And Administrative Expenses [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss) recognized in earnings $ (897) $ 1,100 $ (3,654) $ 397