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GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS: (Details 4) (Internet Segment Goodwill [Member], USD $) | Oct. 01, 2014 | Oct. 01, 2013 | Oct. 01, 2012
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Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items] |  |  |
Impairment charge (in millions) | $ 0 roia_PreTaxImpairmentCharges | $ 0 roia_PreTaxImpairmentCharges | $ 0 roia_PreTaxImpairmentCharges
Discount Rate | 13.50%roia_DiscountRate | 14.50%roia_DiscountRate | 13.50%roia_DiscountRate
Year 1 Revenue Growth Rate | 11.80%roia_Year1MarketRevenueGrowthRange | 10.00%roia_Year1MarketRevenueGrowthRange | 13.80%roia_Year1MarketRevenueGrowthRange
Long-term Revenue Growth Rate (Year 10) | 2.50%roia_LongTermMarketRevenueGrowthRateRange | 2.50%roia_LongTermMarketRevenueGrowthRateRange | 2.50%roia_LongTermMarketRevenueGrowthRateRange
Minimum [Member] |  |  |
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items] |  |  |
Operating Profit Margin Range | 9.10%roia_OperatingProfitMarginRange / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementBusinessSegmentsAxis = roia_InternetSegmentMember | 5.40%roia_OperatingProfitMarginRange / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementBusinessSegmentsAxis = roia_InternetSegmentMember | (4.80%)roia_OperatingProfitMarginRange / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementBusinessSegmentsAxis = roia_InternetSegmentMember
Maximum [Member] |  |  |
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items] |  |  |
Operating Profit Margin Range | 25.60%roia_OperatingProfitMarginRange / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementBusinessSegmentsAxis = roia_InternetSegmentMember | 24.80%roia_OperatingProfitMarginRange / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementBusinessSegmentsAxis = roia_InternetSegmentMember | 24.20%roia_OperatingProfitMarginRange / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementBusinessSegmentsAxis = roia_InternetSegmentMember

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- Definition This element represents the discount rate. + References No definition available. + Details
Name: | roia_DiscountRate
Namespace Prefix: | roia_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition This element represents the long term market revenue growth rate range. + References No definition available. + Details
Name: | roia_LongTermMarketRevenueGrowthRateRange
Namespace Prefix: | roia_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition This element represents the operating profit margin range. + References No definition available. + Details
Name: | roia_OperatingProfitMarginRange
Namespace Prefix: | roia_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition This element represents the amount of pre tax impairment charges. + References No definition available. + Details
Name: | roia_PreTaxImpairmentCharges
Namespace Prefix: | roia_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | roia_ScheduleOfGoodwillRadioBroadcastingLicensesAndOtherIntangibleAssetsLineItems
Namespace Prefix: | roia_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents the market revenue growth range. + References No definition available. + Details
Name: | roia_Year1MarketRevenueGrowthRange
Namespace Prefix: | roia_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant