v2.4.0.8

Notes Payable (New Zealand Corporate Credit Facility) (Narrative) (Details)	12 Months Ended			12 Months Ended
	Dec. 31, 2013 Previous New Zealand Corporate Credit Facility [Member]	Feb. 08, 2012 Previous New Zealand Corporate Credit Facility [Member] USD ($)	Feb. 08, 2012 Previous New Zealand Corporate Credit Facility [Member] NZD	Dec. 31, 2013 New Zealand Corporate Credit Facility [Member] USD ($)	Dec. 31, 2013 New Zealand Corporate Credit Facility [Member] NZD
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 36,900,000	45,000,000	$ 32,800,000	40,000,000
Line of credit facility, term				3 years	3 years
Line of credit facility, decrease in maximum borrowing capacity				$ 4,100,000	5,000,000
Increase in spread on variable interest rate	0.55%
Spread on variable interest rate				2.00%	2.00%
Line of credit facility charge	0.30%			0.40%	0.40%

X

- Definition

Debt Instrument, Increase Decrease In Basis Spread On Variable Rate

+ References

No definition available.

+ Details

Name:	rdi_DebtInstrumentIncreaseDecreaseInBasisSpreadOnVariableRate
Namespace Prefix:	rdi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Debt Instrument Term

+ References

No definition available.

+ Details

Name:	rdi_DebtInstrumentTerm
Namespace Prefix:	rdi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line Of Credit Facility Charge, Percentage

+ References

No definition available.

+ Details

Name:	rdi_LineOfCreditFacilityChargePercentage
Namespace Prefix:	rdi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line Of Credit Facility, Increase Decrease In Maximum Borrowing Capacity

+ References

No definition available.

+ Details

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

X

- Definition

The percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

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

X

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant