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Derivatives And Hedging Activities (Effect Of Derivative Financial Instruments On The Consolidated Statements Of Income) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2012
Derivatives Designated As Hedges [Member] | Fair Value Hedging [Member] | Interest Rate Swap [Member] | Interest Expense [Member]
      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (loss) recognized in earnings - Derivative $ 0 $ 0 $ 3,195
Gain (loss) recognized in earnings - Hedged item 0 0 (3,195)
Derivatives Designated As Hedges [Member] | Cash Flow Hedges [Member] | Interest Rate Swap [Member] | Interest Expense [Member]
      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (loss) recorded in accumulated other comprehensive loss (142) (1,470) (1,119)
Gain (loss) reclassified from accumulated other comprehensive loss into earnings (886) (910) 0
Derivatives Designated As Hedges [Member] | Cash Flow Hedges [Member] | Interest Rate Swap [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
Derivatives Designated As Hedges [Member] | Cash Flow 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 (1,635) (8,709) 2,652
Gain (loss) reclassified from accumulated other comprehensive loss into earnings (3,844) (8,741) 5,882
Derivatives Designated As Hedges [Member] | Cash Flow 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 (1,839) (1,325) 857
Derivatives Not Designated As Hedges [Member] | Forward Foreign Currency Exchange Contracts [Member] | Selling, General And Administrative Expenses [Member]
      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative, Gain (Loss) on Derivative, Net $ (6,609) $ (3,115) $ 1,829