Restructuring And Other Special Charges, Net (Schedule of Restructuring Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Jun. 30, 2011	Mar. 31, 2013	Mar. 31, 2012
Restructuring Reserve [Roll Forward]
Restructuring Reserve Beginning of Period	$ 0	$ 14,128	$ 0
Restructuring charges		1,523	14,473
Cash payments		(6,955)	(345)
Other adjustments		(3,700)
Restructuring Reserve End of Period		4,996	14,128
Severance Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve Beginning of Period	0	13,138	0
Restructuring charges	13,300	0	13,330
Cash payments		(4,756)	(192)
Other adjustments		(3,700)
Restructuring Reserve End of Period		4,682	13,138
Facility Closing and Other Restructuring Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve Beginning of Period	0	990	0
Restructuring charges		1,523	1,143
Cash payments		(2,199)	(153)
Other adjustments		0
Restructuring Reserve End of Period		$ 314	$ 990