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v3.20.2

Investments in and Advances to Unconsolidated Joint Ventures (Details) $ in Thousands |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jan. 31, 2020 facility | Oct. 31, 2020 USD ($) | Jan. 31, 2020 USD ($) facility | Oct. 31, 2019 USD ($) joint_venture property | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) property joint_venture | Dec. 31, 2019 USD ($) joint_venture property | Jan. 31, 2020 property | Jan. 31, 2020 | Jan. 31, 2020 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Advances to unconsolidated joint ventures, net |  |  |  |  |  | $ 0 | $ 76 |  |  |
Investments in and advances to unconsolidated joint ventures |  |  |  |  |  | 436,271 | 825,515 |  |  |
Equity Method Investment, Nonconsolidated Investee or Group of Investees |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  | $ 9,000 |  |  |  |
Investment return percentage |  |  |  |  |  | 10.00% |  |  |  |
Discovery Naples JV |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  | 41.00% |  |  |  |
Discovery Sarasota JV |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  | 47.00% |  |  |  |
SWF SH JV |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Property count | property |  |  |  |  |  | 19 |  |  |  |
Investment ownership percentage |  |  |  |  |  | 54.00% |  |  |  |
Equity method investments |  |  |  |  |  | $ 374,198 | 428,258 |  |  |
MBK JV |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Property count | property |  |  |  |  |  | 5 |  |  |  |
Investment ownership percentage |  |  |  |  |  | 50.00% |  |  |  |
Equity method investments |  |  |  |  |  | $ 36,034 | 33,415 |  |  |
Other SHOP JVs |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Property count | property |  |  |  |  |  | 2 |  |  |  |
Equity method investments |  |  |  |  |  | $ 15,973 | 17,719 |  |  |
Other SHOP JVs | Minimum |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  | 50.00% |  |  |  |
Other SHOP JVs | Maximum |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  | 90.00% |  |  |  |
Waldwick |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  | 85.00% |  |  |  |
Waldwick | Subsequent Event |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  | 100.00% |  |  |  |  |  |  |  |
Additional ownership percentage acquired |  | 15.00% |  |  |  |  |  |  |  |
Payments to acquire real estate joint ventures |  | $ 4,000 |  |  |  |  |  |  |  |
Otay Ranch |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  | 90.00% |  |  |  |
MBK Development JV |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  | 50.00% |  |  |  |
Medical Office JVs |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Property count | property |  |  |  |  |  | 3 |  |  |  |
Equity method investments |  |  |  |  |  | $ 9,719 | $ 9,845 |  |  |
Number of unconsolidated joint ventures (in joint ventures) | joint_venture |  |  |  |  |  | 3 |  |  |  |
Medical Office JVs | Minimum |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  | 20.00% |  |  |  |
Medical Office JVs | Maximum |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  | 67.00% |  |  |  |
HCP Ventures IV, LLC |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  | 20.00% |  |  |  |
HCP Ventures III, LLC |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  | 30.00% |  |  |  |
Suburban Properties, LLC |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  | 67.00% |  |  |  |
CCRC JV |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Property count | property |  |  |  |  |  | 2 |  |  |  |
Investment ownership percentage |  |  |  |  |  | 49.00% | 49.00% |  | 49.00% |
Equity method investments |  |  |  |  |  | $ 347 | $ 325,830 |  |  |
Number of properties classified as held for sale | property |  |  |  |  |  |  | 1 |  |  |
Impairment charge |  |  |  |  | $ 6,000 |  | $ 12,000 |  |  |
Other JVs |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Property count | property |  |  |  |  |  | 0 |  |  |  |
Equity method investments |  |  |  |  |  | $ 0 | $ 10,372 |  |  |
K&Y JVs |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  |  | 80.00% |  |  |
Number of unconsolidated joint ventures (in joint ventures) | joint_venture |  |  |  | 1 |  |  | 1 |  |  |
Proceeds from sale of equity method investments |  |  | $ 12,000 | $ 4,000 |  |  |  |  |  |
Brookedale MTCA | CCRC JV |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Interest acquired | 51.00% |  |  |  |  |  |  |  |  |
CCRC JV | Brookedale MTCA |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Property count | property |  |  |  |  |  |  |  | 15 |  |
Equity method investments |  |  |  |  |  |  |  |  |  | $ 323,000
CCRC JV | Assets Leased to Others | Other non-reportable |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Property count | 15 |  | 15 | 15 |  |  |  | 15 |  |
CCRC JV | Assets Leased to Others | Other non-reportable | Brookedale MTCA |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |
Property count | 13 |  | 13 |  |  | 13 |  | 13 |  |
Interest acquired |  |  | 51.00% |  |  |  |  |  |  |

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