XML 43 R47.htm IDEA: XBRL DOCUMENT
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Operating Units Other Segments (Details) (USD $) In Millions, unless otherwise specified |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Mar. 31, 2013 Real Estate Segment [Member] real_estate_properties | Dec. 31, 2012 Real Estate Segment [Member] | Mar. 31, 2013 ARI [Member] | Mar. 31, 2013 Viskase [Member] manufacturing_facilities distribution_centers | Mar. 31, 2013 MASSACHUSETTS Real Estate Segment [Member] real_estate_property_units | Mar. 31, 2013 FLORIDA Real Estate Segment [Member] real_estate_property_units
Segment Reporting Information [Line Items] |  |  |  |  |  |
Percentage of equity ownership in subsidiary |  |  | 55.60% | 70.80% |  |
Nnumber of Manufacturing Facilities |  |  |  | 8 |  |
Number of Distribution Centers |  |  |  | 10 |  |
Disclosure on Geographic Areas, Revenue from External Customers Attributed to Foreign Countries, Percentage |  |  |  | 73.00% |  |
Number of Real Estate commercial rental properties | 29 |  |  |  |  |
Number of units of residential housing in future development |  |  |  |  | 322 | 870
Pledged assets | $ 72 | $ 73 |  |  |  |

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