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Subsequent Events (Details) (USD $) In Millions, except Per Share data, unless otherwise specified | 0 Months Ended
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Feb. 11, 2013 Depositary units [Member] | Nov. 01, 2013 Limited partners Depositary units [Member] Dividend Declared [Member] | Aug. 06, 2013 Limited partners Depositary units [Member] Dividend Declared [Member] | Apr. 29, 2013 Limited partners Depositary units [Member] Dividend Declared [Member] | Oct. 02, 2013 American Entertainment Properties Corp. [Member] Railcar Segment [Member] | Oct. 02, 2013 ARL [Member] Railcar Segment [Member] | Oct. 02, 2013 New ARL [Member] Railcar Segment [Member]
Subsequent Event [Line Items] |  |  |  |  |  |  |
Distribution declared per depositary unit | $ 1.00 | $ 1.25 | $ 1.25 | $ 1.00 |  |  |
Amount paid for management contract between related parties |  |  |  |  | $ 21 |  |
Cash contribution to newly capitalized entity |  |  |  |  | 279 | 71 |
Future planned contribution to newly capitalized entity, percentage |  |  |  |  | 100.00% |  |
Note receivable contribution to newly capitalized entity |  |  |  |  |  | 171 |
Percentage of equity ownership in subsidiary |  |  |  |  |  |  | 75.00%
Future debt expected to be incurred by new capitalized entity |  |  |  |  |  |  | 381
Future cash expected to be distributed by newly capitalized entity |  |  |  |  |  |  | $ 381

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- Definition Cash contribution to newly capitalized entity + References No definition available. + Details
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- Definition Future cash expected to be distributed by newly capitalized entity + References No definition available. + Details
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- Definition Future planned contribution to newly capitalized entity, percentage + References No definition available. + Details
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- Definition Note receivable contribution to newly capitalized entity + References No definition available. + Details
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Details
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- 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
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