ACQUISITIONS (Narrative) (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 31, 2016	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Business Acquisition [Line Items]
Acquisition related costs				$ 300,000
Net revenues		$ 27,500,000		35,100,000
Operating loss		9,700,000		11,100,000
Gain disposition of assets		11,000	$ 29,000	2,671,000	$ 51,000
Tennis Channel
Business Acquisition [Line Items]
Business combination purchase price	$ 350,000,000
Working capital adjustment	$ 6,500,000
Decrease to deferred tax assets		37,600,000
Decrease to goodwill		66,300,000
Increase to amortization (less than)				100,000
Goodwill deductible for tax purposes		0		$ 0
Tennis Channel | Definite-lived intangible assets
Business Acquisition [Line Items]
Increase (decrease) to intangible assets		115,600,000
Tennis Channel | Indefinite-lived intangible assets
Business Acquisition [Line Items]
Increase (decrease) to intangible assets		(11,600,000)
Tennis Channel | Customer relationships | Minimum
Business Acquisition [Line Items]
Amortization period				10 years
Tennis Channel | Customer relationships | Maximum
Business Acquisition [Line Items]
Amortization period				15 years
Tennis Channel | Other intangible assets | Minimum
Business Acquisition [Line Items]
Amortization period				1 year
Tennis Channel | Other intangible assets | Maximum
Business Acquisition [Line Items]
Amortization period				3 years
Television Station Acquisitions
Business Acquisition [Line Items]
Business combination purchase price				$ 72,000,000
Working capital adjustment		$ 200,000		200,000
Gain disposition of assets				$ 2,600,000