Restructuring Charges (Schedule Of Restructuring And Related Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Restructuring Charges [Abstract]
Severance charges	$ 0	$ 0	$ 0	$ 8,046
Lease termination charges	0	0	(4)	0
Asset impairment charges	229	36	229	7,374
Gain on sale of assets held for sale, net	(217)	0	(374)	0
Professional fees and other charges	57	773	116	1,681
Total restructuring charges, net	$ 69	$ 809	$ (33)	$ 17,101