v2.4.0.6

Investment And Development Property (Summary Of Investment And Development Property) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Property, Plant and Equipment [Line Items] |  |
Investment and development property, net | $ 94,922 | $ 90,699
Land [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Investment and development property, net | 77,020 | 75,384
Construction-In-Progress (Including Capitalized Interest) [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Investment and development property, net | $ 17,902 | $ 15,315

X
- Definition Properties owned by the entity in a status of either being held for development or currently under development for the ultimate purpose to either sell or be operated by the entity. + References No definition available. + Details
Name: | rdi_PropertyHeldForAndUnderDevelopment
Namespace Prefix: | rdi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration