Derivatives And Hedging Activities (Effect Of Derivative Financial Instruments On The Consolidated Balance Sheets) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Derivative [Line Items]
Derivatives in a Fair Value Asset Position Designated as Hedging Instruments	$ 0	$ 106	$ 0
Derivatives in a Fair Value Liability Position Designated as Hedging Instruments	1,573	3,446	0
Derivatives in a Fair Value Asset Position Not Designated as Hedging Instruments	540	5,148	6,075
Derivatives in a Fair Value Liability Position Not Designated as Hedging Instruments	90	183	270
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	1,573	3,050	0
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	106	0
Derivatives in a Fair Value Asset Position Not Designated as Hedging Instruments	540	5,148	6,075
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	396	0
Derivatives in a Fair Value Liability Position Not Designated as Hedging Instruments	$ 90	$ 183	$ 270