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Notes Payable (Sutton Hill Capital Note) (Narrative) (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended
	Jun. 18, 2013
Sutton Hill Capital, LLC [Member]
Debt Instrument [Line Items]
Repayment of debt	$ 2.25us-gaap_RepaymentsOfDebt / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = rdi_SuttonHillCapitalLlcMember
Ownership percentage by parent	75.00%us-gaap_MinorityInterestOwnershipPercentageByParent / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = rdi_SuttonHillCapitalLlcMember
Reading International Inc. [Member]
Debt Instrument [Line Items]
Repayment of debt	6.75us-gaap_RepaymentsOfDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
US Sutton Hill Capital Note - Related Party [Member]
Debt Instrument [Line Items]
Repayment of debt	$ 9.00us-gaap_RepaymentsOfDebt / us-gaap_DebtInstrumentAxis = rdi_UnitedStatesSuttonHillCapitalNoteRelatedPartyMember

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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