Restructuring (Components Of Restructuring Charges) (Details) (USD $) In Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011
Restructuring Cost and Reserve [Line Items]
Accruals	$ 2,499	$ 4,838
Non-cash items		645
Total	2,499	5,483
Facilities Related Charges [Member]
Restructuring Cost and Reserve [Line Items]
Accruals	2,306	2,344
Total	2,306	2,344
Employee Separation Costs [Member]
Restructuring Cost and Reserve [Line Items]
Accruals	163	2,853
Total	163	2,853
Asset Impairments [Member]
Restructuring Cost and Reserve [Line Items]
Accruals	(1)	(399)
Non-cash items		645
Total	(1)	246
Other Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Accruals	31	40
Total	$ 31	$ 40