SEGMENT DATA - Additional Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($) market	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) market	Sep. 30, 2014 USD ($)
Segment data
Intercompany loans	$ 226.0	$ 172.3	$ 226.0	$ 172.3
Intercompany interest expense	$ 6.1	$ 5.3	$ 16.9	$ 15.3
Operating segments | Broadcast
Segment data
Number of markets | market	79		79