XML 62 R51.htm IDEA: XBRL DOCUMENT
v3.22.1

Properties And Equipment (Summary Of Investment And Development Property) (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Property, Plant and Equipment [Line Items] |  |
Investment and development property | $ 9,668 | $ 9,570
Land [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Investment and development property | 4,224 | 4,193
Construction-In-Progress (Including Capitalized Interest) [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Investment and development property | $ 5,444 | $ 5,377

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
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=rdi_ConstructionInProgressIncludingCapitalizedInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |