Derivatives And Hedging Activities (Effect Of Derivative Financial Instruments On The Consolidated Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Mar. 31, 2014	Sep. 30, 2013
Derivative [Line Items]
Derivatives in a Fair Value Asset Position Designated as Hedging Instruments	$ 0	$ 1,731	$ 0
Derivatives in a Fair Value Liability Position Designated as Hedging Instruments	638	949	1,170
Derivatives in a Fair Value Asset Position Not Designated as Hedging Instruments	5,172	343	8
Derivatives in a Fair Value Liability Position Not Designated as Hedging Instruments	109	3,960	4,511
Interest Rate Swap Agreements [Member] | Other Non-Current Assets [Member]
Derivative [Line Items]
Derivatives in a Fair Value Asset Position Designated as Hedging Instruments	0	0	0
Interest Rate Swap Agreements [Member] | Other Long-Term Liabilities [Member]
Derivative [Line Items]
Derivatives in a Fair Value Liability Position Designated as Hedging Instruments	638	936	1,170
Forward Foreign Currency Exchange Contract [Member] | Other Current Assets [Member]
Derivative [Line Items]
Derivatives in a Fair Value Asset Position Designated as Hedging Instruments	0	1,731	0
Derivatives in a Fair Value Asset Position Not Designated as Hedging Instruments	5,172	343	8
Forward Foreign Currency Exchange Contract [Member] | Accounts Payable and Accrued Expenses [Member]
Derivative [Line Items]
Derivatives in a Fair Value Liability Position Designated as Hedging Instruments	0	13	0
Derivatives in a Fair Value Liability Position Not Designated as Hedging Instruments	$ 109	$ 3,960	$ 4,511