Restructuring Activities (Schedule Of Restructuring Costs By Type) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Restructuring Activities [Abstract]
Severance costs		$ 5,472	$ 12,500
Lease / contract exit and related costs		2,623	4,251
Other	[1]	633	7,766
Total restructuring charges		$ 8,728	$ 24,517

[1] The amounts in 'Other' consist of various asset and inventory impairment charges prompted by the aforementioned restructuring plan, legal fees and facility maintenance fees.