Restructuring Costs (Reconciliation Of Company's Liability For The Restructuring Costs) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Restructuring Cost and Reserve [Line Items]
Costs charged to expense	$ 6,746	$ 4,113	$ 11,661
Payments	(4,942)	(5,293)	(16,710)
Balance	2,186	382	1,562	6,611
Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination benefits	3,743	4,113	8,564
Payments	(2,099)	(5,002)	(13,679)
Balance	2,026	382	1,271	6,386
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Other restructuring costs	3,003	0	3,097
Payments	(2,843)	(291)	(3,031)
Balance	$ 160	$ 0	$ 291	$ 225

Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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- Definition

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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