Derivatives And Hedging Activities (Effect Of Derivative Financial Instruments On The Consolidated Statements Of Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
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	$ (9,732)	$ 50	$ (6,056)	$ (109)
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	(1,341)	(199)	(2,676)	(406)
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	101	47	1,283	1,700
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	344	1,208	358	1,459
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	(673)	30	745	257
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	$ 10,524	$ 4,176	$ 8,380	$ 2,881