Restructuring And Other Special Charges (Schedule of Restructuring Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2011 Severance Costs [Member]	Dec. 31, 2012 Severance Costs [Member]	Dec. 31, 2012 Facility Exit and Other Restructuring Costs [Member]
Restructuring Reserve [Roll Forward]
Balance at March 31, 2012			$ 14,128			$ 13,138	$ 990
Restructuring charges	400	748	1,165	14,078	13,300	0	1,165
Cash payments			(4,951)			(3,120)	(1,831)
Other adjustments			(3,700)			(3,700)	0
Balance at December 31, 2012	$ 6,642		$ 6,642			$ 6,318	$ 324