GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS: (Details 3) (Reach Media Goodwill [Member], USD $) In Millions, unless otherwise specified	Oct. 01, 2012	Oct. 01, 2011	Dec. 31, 2010	Oct. 01, 2010
Pre-tax impairment charge (in millions)	$ 0	$ 0	$ 16.1	$ 0
Discount Rate	12.00%	12.00%	13.50%	13.00%
Year 1 Revenue Growth Rate Range	2.00%	2.50%	2.50%	2.50%
Minimum [Member]
Long-term Revenue Growth Rate Range	(4.70%)	(2.00%)	(2.60%)	2.50%
Operating Profit Margin Range	4.60%	18.80%	15.50%	25.50%
Maximum [Member]
Long-term Revenue Growth Rate Range	2.80%	3.50%	4.40%	3.30%
Operating Profit Margin Range	19.80%	21.70%	25.90%	31.20%