SEGMENT DATA - Additional Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) item	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) item	Jun. 30, 2014 USD ($)
Segment data
Intercompany loans	$ 225.9	$ 172.2	$ 225.9	$ 172.2
Intercompany interest expense	$ 5.6	$ 5.1	$ 10.8	$ 10.0
Operating segments | Broadcast
Segment data
Number of markets | item	79		79