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Real Estate Investments - Types of property Development and Improvement (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Real estate investments |  |  |
Invested in projects | $ 18,150 |  |
Developments | Development and Improvement Commitments |  |  |
Real estate investments |  |  |
Invested in projects | 20,524 | $ 35,279 | $ 22,901
Improvements | Development and Improvement Commitments |  |  |
Real estate investments |  |  |
Invested in projects | 2,839 | 3,249 | 2,899
ALF | Developments | Development and Improvement Commitments |  |  |
Real estate investments |  |  |
Invested in projects | 14,088 | 27,505 | 17,667
ALF | Improvements | Development and Improvement Commitments |  |  |
Real estate investments |  |  |
Invested in projects | 2,544 | 2,292 | 1,152
SNF | Developments | Development and Improvement Commitments |  |  |
Real estate investments |  |  |
Invested in projects | 6,436 | 7,774 | 5,234
SNF | Improvements | Development and Improvement Commitments |  |  |
Real estate investments |  |  |
Invested in projects |  | 500 | 1,356
Other | Improvements | Development and Improvement Commitments |  |  |
Real estate investments |  |  |
Invested in projects | $ 295 | $ 457 | $ 391

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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