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Fair Value Measurements (Tables) | 6 Months Ended
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Jun. 30, 2013
Fair Value Measurements [Abstract] |
Schedule of Fair Value Measurement Inputs [Table Text Block] | The following tables present the Company's assets and liabilities from continuing operations measured at fair value on a recurring and non-recurring basis as of June 30, 2013 and December 31, 2012, aggregated by the level in the fair value hierarchy within which those measurements fall:
| Balance |  | Fair Value Measurements Using
Description | June 30, 2013 |  | (Level 1) |  | (Level 2) |  | (Level 3)
Interest rate swap asset | $ | 3,912 |  |  | $ | — |  |  | $ | 3,912 |  |  | $ | — |
Impaired real estate assets* | $ | 4,277 |  |  | $ | — |  |  | $ | — |  |  | $ | 4,277 |
| Balance |  | Fair Value Measurements Using
Description | December 31, 2012 |  | (Level 1) |  | (Level 2) |  | (Level 3)
Interest rate swap liability | $ | (6,556 | ) |  | $ | — |  |  | $ | (6,556 | ) |  | $ | — |
Impaired real estate assets* | $ | 3,327 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,327 |
*Represents a non-recurring fair value measurement.
Schedule of Carrying Amounts and Fair Value of Financial Instruments [Table Text Block] | The table below sets forth the carrying amounts and estimated fair values of the Company's financial instruments as of June 30, 2013 and December 31, 2012.
| As of June 30, 2013 |  | As of December 31, 2012
| Carrying Amount |  | Fair Value |  | Carrying Amount |  | Fair Value
Assets |  |  |  |  |  |  |
Loans Receivable | $ | 88,994 |  |  | $ | 78,375 |  |  | $ | 72,540 |  |  | $ | 61,734 |
Liabilities |  |  |  |  |  |  |  |  |  |  |
Debt | $ | 1,778,305 |  |  | $ | 1,766,215 |  |  | $ | 1,878,208 |  |  | $ | 1,835,157 |

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- Definition Schedule of Carrying Amounts and Fair Value of Financial Instruments [Table Text Block] + References No definition available. + Details
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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19190-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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