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GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS: (Details 3) (Reach Media Segment Goodwill [Member], USD $)	Oct. 01, 2014	Oct. 01, 2013	Oct. 01, 2012
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items]
Impairment charge (in millions)	$ 0roia_PreTaxImpairmentCharges	$ 0roia_PreTaxImpairmentCharges	$ 0roia_PreTaxImpairmentCharges
Discount Rate	12.00%roia_DiscountRate	13.00%roia_DiscountRate	12.00%roia_DiscountRate
Year 1 Revenue Growth Rate	1.50%roia_Year1MarketRevenueGrowthRange	1.50%roia_Year1MarketRevenueGrowthRange	2.00%roia_Year1MarketRevenueGrowthRange
Minimum [Member]
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items]
Long-term Revenue Growth Rate Range	0.10%	(4.50%)	(4.70%)
Operating Profit Margin Range	10.00%	11.50%	4.60%
Maximum [Member]
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items]
Long-term Revenue Growth Rate Range	2.00%	2.60%	2.80%
Operating Profit Margin Range	14.90%	21.50%	19.80%