Restructuring And Impairment Costs (Cumulative Restructuring And Impairment Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				24 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Mar. 31, 2012
Restructuring Costs [Abstract]
Employee termination benefits			$ 3,762
Other costs			3,097
Restructuring costs	$ 0	[1]	$ 6,859	[1]	$ 33,000

[1] Item is not included in segment operating income, but is included in consolidated operating income.