Commitments And Contingencies (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
Sep. 30, 2014	Dec. 31, 2013
Commitments And Contingencies [Abstract]
Total debt of unconsolidated joint ventures and entities	$ 623	$ 634
Share of unconsolidated debt, based on ownership percentage	$ 208	$ 211

Share of unconsolidated debt based on our ownership percentage.

No definition available.

Name:	rdi_ShareOfUnconsolidatedDebtBasedOnOurOwnershipPercentage
Namespace Prefix:	rdi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration