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Operating Units Gaming Segment (Details) (Tropicana [Member]) | 3 Months Ended
--- | ---
Mar. 31, 2013 slot_machines sqft hotel_rooms table_games casinos
Segment Reporting Information [Line Items] |
Number of casinos | 8
Square footage of casino space | 372,000
Number of slot machines | 7,100
Number of table games | 210
Number of hotel rooms | 6,000
Percentage of equity ownership in subsidiary | 67.90%
LOUISIANA |
Segment Reporting Information [Line Items] |
Number of casinos | 1
NEVADA |
Segment Reporting Information [Line Items] |
Number of casinos | 3
INDIANA |
Segment Reporting Information [Line Items] |
Number of casinos | 1
NEW JERSEY |
Segment Reporting Information [Line Items] |
Number of casinos | 1
ARUBA |
Segment Reporting Information [Line Items] |
Number of casinos | 1
MISSISSIPPI |
Segment Reporting Information [Line Items] |
Number of casinos | 1

X
- Definition Casino space, square footage + References No definition available. + Details
Name: | iep_CasinoSpaceSquareFootage
Namespace Prefix: | iep_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Casinos Owned and Operated + References No definition available. + Details
Name: | iep_NumberOfCasinos
Namespace Prefix: | iep_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Hotel Rooms + References No definition available. + Details
Name: | iep_NumberOfHotelRooms
Namespace Prefix: | iep_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Slot Machines + References No definition available. + Details
Name: | iep_NumberOfSlotMachines
Namespace Prefix: | iep_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Table Games + References No definition available. + Details
Name: | iep_NumberOfTableGames
Namespace Prefix: | iep_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 22 -Article 12 + Details
Name: | us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration