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Supplemental Disclosure of Statement of Cash Flow Information Other Noncash Transactions (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Other Significant Noncash Transactions [Line Items] |  |  |
Interest paid | $ 92,788 | $ 101,262 | $ 103,427
Income taxes paid | 4,666 | 1,018 | 1,289
Interests Sold [Member] |  |  |
Other Significant Noncash Transactions [Line Items] |  |  |
Real estate number of properties sold (in # of properties) | 2 |  | 3
Real estate non-recourse mortgage debt assumed | 40,356 | 8,921 | 28,648
Seller financing |  |  | 3,003
Conveyed Interest [Member] |  |  |
Other Significant Noncash Transactions [Line Items] |  |  |
Properties with conveyed interest | 4 | 2 |
Original debt conversion amount | $ 49,510 | $ 12,409 |

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- Definition The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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