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

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.

No definition available.

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