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ACQUISITION AND DISPOSITION OF REAL ESTATE AND PROPERTIES HELD FOR SALE - Assets Held For Sale (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
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ACQUISITION AND DISPOSITION OF REAL ESTATE AND DISCONTINUED OPERATIONS ABSTRACT |  |
Assets of properties held for sale | $ 0 us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation | $ 56,073 us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation
Liabilities of properties held for sale | $ 0 us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation | $ 25,500 us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation

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- Definition Amount classified as assets attributable to disposal group held for sale or disposed of. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759 + Details
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- Definition Amount classified as liabilities attributable to disposal group held for sale or disposed of. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1436-107760 + Details
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