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, 2015	Mar. 31, 2014	Mar. 31, 2013
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	$ (4,044)	$ (142)	$ (1,470)
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	(1,929)	(886)	(910)
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	1,410	(1,635)	(8,709)
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	3,099	(3,844)	(8,741)
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	257	(1,839)	(1,325)
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	$ 13,178	$ (6,609)	$ (3,115)