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Real Estate Properties - Narrative (Details) $ in Thousands |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Nov. 02, 2020 USD ($) property | Nov. 05, 2020 USD ($) trustee | Jan. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) property | Mar. 31, 2020 USD ($) building | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) building property | Sep. 30, 2019 USD ($) | Sep. 30, 2020 state | Sep. 30, 2020 | Sep. 30, 2020 building
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties | property |  |  |  | 407 |  |  | 407 |  |  |  |
Number of states in which properties are located | state |  |  |  |  |  |  |  |  | 37 |  |
Number of real estate properties scheduled for closure | property |  |  |  | 10 |  |  | 10 |  |  |  |
Impairment of assets |  |  |  | $ 64,202 |  | $ 33,099 | $ 106,611 | $ 41,518 |  |  |
Senior Living Community, Schedule For Closure Or Sale |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties scheduled for closure | building |  |  |  |  |  |  |  |  |  |  | 10
Held-for-sale |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties held for sale |  |  |  | 22 |  |  | 22 |  |  |  | 22
Aggregate sale price |  |  |  |  |  |  | $ 80,601 |  |  |  |
Impairment of assets |  |  |  |  |  |  | 34,880 |  |  |  |
Held-for-sale | Medical Office Buildings |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties | building |  |  |  |  | 6 |  |  |  |  |  |
Number of real estate properties held for sale | building |  |  |  |  |  |  |  |  |  |  | 5
Impairment of assets |  |  |  |  | $ 3,071 |  | 1,524 |  |  |  |
Held-for-sale | Senior Living Communities |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties | building |  |  |  |  | 1 |  |  |  |  |  |
Number of real estate properties held for sale | building |  |  |  |  |  |  |  |  |  |  | 14
Impairment of assets |  |  |  |  |  |  | 33,356 |  |  |  |
Held-for-sale | Triple Net Leased Senior Living Communities |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties held for sale | building |  |  |  |  |  |  |  |  |  |  | 3
Impairment of assets |  |  |  |  |  |  | 0 |  |  |  |
Held-for-sale | Senior Living Community, Schedule For Closure Or Sale |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties | building |  |  |  |  |  |  |  |  |  |  | 9
Impairment of assets |  |  |  | $ 59,847 |  |  | $ 59,847 |  |  |  |
Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties sold | building |  |  |  |  |  |  | 17 |  |  |  |
Impairment of assets |  |  |  |  |  |  | $ 8,813 |  |  |  |
Joint Venture |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  | 55.00% |
Joint Venture | Life Science Building |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Number of properties included in joint venture | property |  |  |  | 1 |  |  | 1 |  |  |  |
Tempe, AZ | Land Parcel |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Aggregate purchase price |  |  | $ 2,600 |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Aggregate sale price | $ 167,392 |  |  |  |  |  |  |  |  |  |
Number of properties under agreement to sell | property | 21 |  |  |  |  |  |  |  |  |  |
Subsequent Event | Held-for-sale |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Aggregate sale price |  | $ 49,000 |  |  |  |  |  |  |  |  |
Subsequent Event | Held-for-sale | Senior Living Communities |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties sold | trustee |  | 1 |  |  |  |  |  |  |  |  |
Subsequent Event | Held-for-sale | Triple Net Leased Senior Living Communities |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties sold | trustee |  | 3 |  |  |  |  |  |  |  |  |

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- Definition The number of real estate properties owned by the entity, which are classified as held for sale as of the balance sheet date. + References No definition available. + Details
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