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Restructuring And Impairments (Schedule Of Restructuring Charges And Cash Payments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Dec. 31, 2012	Dec. 31, 2012
Restructuring Cost and Reserve [Line Items]
Accrued restructuring balance	$ 302	$ 974
Charges to operations	2,194	2,338
Cash payments	(1,112)	(1,928)
Accrued restructuring balance	1,384	1,384
Severance Pay And Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring balance	302	680
Charges to operations	2,194	2,377
Cash payments	(1,112)	(1,673)
Accrued restructuring balance	1,384	1,384
Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring balance		294
Charges to operations		(39)
Cash payments		$ (255)

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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