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GOODWILL AND RADIO BROADCASTING LICENSES: (Details 1) (Radio Marketing Units Member [Member], USD $) In Millions, unless otherwise specified | Mar. 31, 2014 | Oct. 01, 2013
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Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items] |  |  |  |
Pre-tax impairment charge (in millions) | $ 0 | [1] | $ 0 | [2]
Discount Rate | 10.00% | [1] | 10.00% | [2]
Year 1 Market Revenue Growth Rate Range | 2.00% | [1] |  |
Long-term Market Revenue Growth Rate Range (Years 6 - 10) | 1.50% | [1] |  |
Mature Market Share Range | 7.90% | [1] |  |
Operating Profit Margin Range | 28.40% | [1] |  |
Minimum [Member] |  |  |  |
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items] |  |  |  |
Year 1 Market Revenue Growth Rate Range |  |  | 0.00% | [2]
Long-term Market Revenue Growth Rate Range (Years 6 - 10) |  |  | 1.00% | [2]
Mature Market Share Range |  |  | 7.10% | [2]
Operating Profit Margin Range |  |  | 28.40% | [2]
Maximum [Member] |  |  |  |
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items] |  |  |  |
Year 1 Market Revenue Growth Rate Range |  |  | 2.00% | [2]
Long-term Market Revenue Growth Rate Range (Years 6 - 10) |  |  | 2.00% | [2]
Mature Market Share Range |  |  | 19.80% | [2]
Operating Profit Margin Range |  |  | 56.40% | [2]
[1] | Reflects changes only to the key assumptions used in the interim testing for certain units of accounting.
[2] | Reflects the key assumptions for testing only those radio markets with remaining goodwill.

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- Definition This element represents the discount rate. + References No definition available. + Details
Name: | roia_DiscountRate
Namespace Prefix: | roia_
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- Definition This element represents the long term market revenue growth rate range. + References No definition available. + Details
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Namespace Prefix: | roia_
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- Definition This element represents the mature market share range. + References No definition available. + Details
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- Definition This element represents the operating profit margin range. + References No definition available. + Details
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Namespace Prefix: | roia_
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Balance Type: | na
Period Type: | instant

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- Definition This element represents the amount of pre tax impairment charges. + References No definition available. + Details
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Balance Type: | debit
Period Type: | instant

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- Details
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- Definition This element represents the market revenue growth range. + References No definition available. + Details
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Namespace Prefix: | roia_
Data Type: | num:percentItemType
Balance Type: | na
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