Restructuring (Components of Restructuring Changes from Continuing Operation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restructuring and Related Activities [Abstract]
Restructuring Charges, Continuing and Discontinued Operations	$ 20,235
Impairment of long-lived assets to be disposed of	7,440		$ 32,732
Restructuring Charges and Lease Termination Costs	27,675
Less: restructuring costs included in discontinued operations	(522)
Restructuring and related costs (Note 11)	$ 27,153	$ 557	$ 4,495