v2.4.0.6

Future Minimum Rental Income (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Future Minimum Rental Income [Abstract]
Real estate revenue	$ 19,727	$ 19,130	$ 18,249

X

- Definition

The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue, sublease revenue and leasing activities associated with live theater operations.

+ References

No definition available.

+ Details

Name:	rdi_RevenueFromRealEstate
Namespace Prefix:	rdi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_LeasesOperatingAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration