Restructuring (Expense by Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 14,998	$ 15,715	$ 0
National Networks [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	3,194	3,664
International And Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 11,804	$ 12,051