Property And Equipment (Summary Of Investment And Development Property) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Investment and development property	$ 26,203	$ 74,230
Land [Member]
Property, Plant and Equipment [Line Items]
Investment and development property	22,748	59,550
Construction-In-Progress (Including Capitalized Interest) [Member]
Property, Plant and Equipment [Line Items]
Investment and development property	$ 3,455	$ 14,680

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.

No definition available.

Name:	rdi_PropertyHeldForAndUnderDevelopment
Namespace Prefix:	rdi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant