ACQUISITIONS (Narrative) (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Business Acquisition [Line Items]
Acquisition related costs				$ 200,000
Net revenues		$ 27,400,000		62,500,000
Operating income (loss)		1,300,000		(9,600,000)
Gains of sale of broadcast assets		3,311,000	$ 255,000	5,982,000	$ 306,000
Tennis Channel
Business Acquisition [Line Items]
Business combination purchase price	$ 350,000,000
Working capital adjustment	$ 9,200,000
Decrease to deferred tax assets		16,100,000
Decrease to goodwill		25,300,000
Increase to amortization		1,100,000
Goodwill deductible for tax purposes		0		$ 0
Tennis Channel | Definite-lived intangible assets
Business Acquisition [Line Items]
Increase (decrease) to intangible assets		45,600,000
Tennis Channel | Indefinite-lived intangible assets
Business Acquisition [Line Items]
Increase (decrease) to intangible assets		(1,500,000)
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
Gains of sale of broadcast assets		$ 1,800,000		$ 2,600,000