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Leases and Management Agreements with Five Star - Narrative (Details) - Five Star $ in Thousands | 3 Months Ended |
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Mar. 31, 2019 USD ($) lease_agreement community | Mar. 31, 2018 USD ($) community | Dec. 31, 2018 USD ($)
Number of communities leased by the Company | community | 184 | 185 |
Number of leases with related party | lease_agreement | 5 |  |
Total rental income recognized | $ 39,313 | $ 51,759 |
Related party transaction, annual rents due | 538 | 1,374 |
Rents receivable | 22,000 |  | $ 18,697
Real estate improvements purchased | 22,579 |  |
Property management agreement expense | $ 3,789 | $ 3,494 |
Rents from significant lessee | Investment |  |  |
Percentage of rental income | 26.50% |  |
Senior Living Communities |  |  |
Number of communities managed by related party | community | 76 | 72 |
Rehabilitation Services |  |  |
Expenses from transactions with related party | $ 1,675 | $ 1,699 |
Rental income | Rents from significant lessee | Investment |  |  |
Percentage of rental income | 14.80% |  |

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