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BUSINESS
6 Months Ended
Jun. 30, 2015
BUSINESS [Abstract]  
BUSINESS
NOTE 1.
BUSINESS
Cablevision Systems Corporation ("Cablevision"), through its wholly-owned subsidiary CSC Holdings, LLC ("CSC Holdings," and collectively with Cablevision, the "Company") owns and operates cable systems and owns companies that provide regional news, local programming and advertising sales services for the cable television industry, provide Ethernet-based data, Internet, voice and video transport and managed services to the business market, and operate a newspaper publishing business.  The Company classifies its operations into three reportable segments: (1) Cable, consisting principally of its video, high-speed data, and Voice over Internet Protocol ("VoIP") operations, (2) Lightpath, which provides Ethernet-based data, Internet, voice and video transport and managed services to the business market in the New York metropolitan area; and (3) Other, consisting principally of (i) Newsday, which includes the Newsday daily newspaper, amNew York, Star Community Publishing Group, and online websites, (ii) the News 12 Networks, which provide regional news programming services, (iii) Cablevision Media Sales Corporation ("Cablevision Media Sales"), a cable television advertising company, and (iv) certain other businesses and unallocated corporate costs.