Restructuring And Impairment Costs (Reconciliation Of Company's Liability For The Restructuring Costs) (Details) (USD $) In Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2011	Mar. 31, 2011
Costs charged to expense	$ 6,859	$ 11,791
Payments	(5,230)	(5,180)
Balance	8,240	6,611
Employee Termination Benefits [Member]
Costs charged to expense	3,762	11,155
Payments	(5,194)	(4,769)
Balance	4,954	6,386
Other Costs [Member]
Costs charged to expense	3,097	636
Payments	(36)	(411)
Balance	$ 3,286	$ 225