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Restructuring And Impairments (Schedule Of Restructuring Charges And Cash Payments) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Restructuring Cost and Reserve [Line Items]
Accrued restructuring balance	$ 974
Charges to operations	2,937	5,646
Cash payments	(3,712)	(4,672)
Accrued restructuring balance	199	974
Severance Pay And Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring balance	680
Charges to operations	2,501	5,319
Cash payments	(2,982)	(4,639)
Accrued restructuring balance	199	680
Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring balance	294
Charges to operations	436	327
Cash payments	(730)	(33)
Accrued restructuring balance		$ 294

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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- Definition

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

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