Restructuring (Calculation of Restructuring Charges) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Restructuring and Related Activities [Abstract]
Restructuring costs			$ 9,433	$ 1,147
Impairment of lease related assets			6,940	0
Total restructuring and lease termination costs			16,373	1,147
Less: restructuring costs included in discontinued operations			(522)	(590)
Restructuring and lease termination costs (Note 11)	$ 0	$ 0	$ 15,851	$ 557