GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS: (Details) (Income Approach Valuation Technique [Member], USD $) In Millions, unless otherwise specified	Oct. 01, 2012	Jun. 30, 2012		Oct. 01, 2011	Oct. 01, 2010
Pre-tax impairment charge (in millions)	$ 0	$ 0.3	[1]	$ 0	$ 19.9
Discount Rate	10.00%	10.00%	[1]	10.00%	10.00%
Minimum [Member]
Year 1 Market Revenue Growth Rate Range	1.00%	1.00%	[1]	1.50%	1.00%
Long-term Market Revenue Growth Rate Range (Years 6 - 10)	1.00%	1.00%	[1]	1.00%	1.00%
Mature Market Share Range	0.70%	5.80%	[1]	0.70%	0.80%
Operating Profit Margin Range	19.60%	29.10%	[1]	19.10%	19.00%
Maximum [Member]
Year 1 Market Revenue Growth Rate Range	2.00%	3.00%	[1]	2.50%	3.00%
Long-term Market Revenue Growth Rate Range (Years 6 - 10)	2.00%	2.00%	[1]	2.00%	2.50%
Mature Market Share Range	27.40%	15.60%	[1]	28.90%	28.30%
Operating Profit Margin Range	47.70%	48.00%	[1]	47.40%	47.30%

[1] Reflects changes only to the key assumptions used in the interim testing for certain units of accounting.