Restructuring Charges (Schedule Of Restructuring And Related Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Restructuring Charges [Abstract]
Severance charges	$ 0	$ 0	$ 0	$ 8,047
Lease termination charges	(4)	0	(4)	0
Asset impairment charges	0	7,358	0	7,358
Gain on sale of assets held for sale, net	0	0	(157)	0
Professional fees and other charges	9	358	59	888
Total restructuring charges, net	$ 5	$ 7,716	$ (102)	$ 16,293