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Leases and Management Agreements with Five Star - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | $ 262,003 | $ 277,202 | $ 528,289 | $ 552,972
Basic housing and support services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 89,082 |  | 176,494 |
Medicare and Medicaid programs |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 7,686 |  | 16,431 |
Private pay and other third party payer SNF services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 12,138 |  | 24,026 |
Residents fees and services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | $ 108,906 | $ 102,617 | $ 216,951 | $ 204,659

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