v2.4.0.6

Summary Of Significant Accounting Policies (Schedule Of Estimated Useful Lives Of Assets) (Details) | 12 Months Ended
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Dec. 31, 2012
Building And Improvements [Member] | Minimum [Member] |
Summary Of Significant Accounting Policies [Line Items] |
Estimated useful life | 15 years
Building And Improvements [Member] | Maximum [Member] |
Summary Of Significant Accounting Policies [Line Items] |
Estimated useful life | 40 years
Theater Equipment [Member] |
Summary Of Significant Accounting Policies [Line Items] |
Estimated useful life | 7 years
Furniture And Fixtures [Member] | Minimum [Member] |
Summary Of Significant Accounting Policies [Line Items] |
Estimated useful life | 5 years
Furniture And Fixtures [Member] | Maximum [Member] |
Summary Of Significant Accounting Policies [Line Items] |
Estimated useful life | 10 years

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- Details
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Namespace Prefix: | rdi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration