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, 2013	Mar. 31, 2012	Mar. 31, 2011
Derivatives Designated As Hedges [Member] | Fair Value Hedging [Member] | Interest Rate Swap Agreements [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings	$ 0	$ 3,195	$ 428
Derivatives Designated As Hedges [Member] | Fair Value Hedging [Member] | Interest Rate Swap Agreements [Member] | Interest Expense [Member] | Fixed Rate Long-Term Debt [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings	0	(3,195)	(428)
Derivatives Designated As Hedges [Member] | Cash Flow Hedges [Member] | Interest Rate Swap Agreements [Member] | Interest Expense [Member] | Fixed Rate Long-Term Debt [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recorded in accumulated other comprehensive loss	(1,470)	(1,119)	0
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	(910)	0	0
Derivatives Designated As Hedges [Member] | Cash Flow Hedges [Member] | Interest Rate Swap Agreements [Member] | Selling, General And Administrative Expenses [Member] | Floating Rate Interest Payments On Term Loan [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] | Forecast Purchases Of Tobacco In Brazil [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recorded in accumulated other comprehensive loss	(8,709)	2,652	2,476
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	(8,741)	5,882	100
Derivatives Designated As Hedges [Member] | Cash Flow Hedges [Member] | Forward Foreign Currency Exchange Contracts [Member] | Selling, General And Administrative Expenses [Member] | Forecast Purchases Of Tobacco In Brazil [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings from ineffective portion and early de-designation of cash flow hedges	(1,325)	857	113
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	$ (3,115)	$ 1,829	$ 2,594