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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, 2016
Dec. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
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 $ 10,876 $ 3,529 $ 8,484 $ (2,527)
Gain (loss) reclassified from accumulated other comprehensive loss into earnings (987) (1,328) (3,135) (4,004)
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 0 0 453 1,283
Gain (loss) reclassified from accumulated other comprehensive loss into earnings 102 362 770 720
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 0 246 745
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 $ (1,576) $ (2,366) $ (2,932) $ 6,014