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Real Estate Investments - Properties held-for-sale (Details) $ in Thousands | Mar. 31, 2018 USD ($) $ / item property | Dec. 31, 2017 USD ($)
--- | --- | ---
Real estate investments |  |
Accumulated depreciation | $ 292,222 | $ 304,117
Properties held-for-sale |  |
Real estate investments |  |
Number of properties | property | 7 |
Gross Investments | $ 43,405 |
Accumulated depreciation | $ 23,223 |
Number of beds/units | $ / item | 460 |
ALF | Properties held-for-sale | Ohio |  |
Real estate investments |  |
Number of properties | property | 5 |
Gross Investments | $ 29,332 |
Accumulated depreciation | $ 17,574 |
Number of beds/units | $ / item | 251 |
ALF | Properties held-for-sale | Pennsylvania |  |
Real estate investments |  |
Number of properties | property | 1 |
Gross Investments | $ 8,327 |
Accumulated depreciation | $ 3,733 |
Number of beds/units | $ / item | 69 |
ALF | Properties held-for-sale | Texas |  |
Real estate investments |  |
Number of properties | property | 1 |
Gross Investments | $ 5,746 |
Accumulated depreciation | $ 1,916 |
Number of beds/units | $ / item | 140 |

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- Definition The number of units in a real estate property owned as of the balance sheet date. + References No definition available. + Details
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- Definition The cumulative amount of depreciation for real estate property held for investment purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(3)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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