Employee Termination Programs - Summary of Rollforward of the Liability Related to the Reorganization Charges by Segment (Details) - Reorganization [Member] $ in Thousands	6 Months Ended
	Jun. 30, 2016 USD ($)
Restructuring Cost And Reserve [Line Items]
Liability, beginning balance	$ 3,266
Net accruals	11,207
Payments	(11,154)
Non-cash	(1,553)	[1]
Liability, ending balance	1,766
U.S. Networks [Member]
Restructuring Cost And Reserve [Line Items]
Liability, beginning balance	3,258
Net accruals	7,467
Payments	(8,537)
Non-cash	(422)	[1]
Liability, ending balance	1,766
Corporate and Other [Member]
Restructuring Cost And Reserve [Line Items]
Liability, beginning balance	8
Net accruals	3,740
Payments	(2,617)
Non-cash	$ (1,131)	[1]

[1] Primarily represents the reclassification of current period charges for share-based compensation