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Investments in and Advances to Unconsolidated Joint Ventures - Schedule of Equity Method Investments (Details) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 31, 2020 USD ($) | Oct. 31, 2019 USD ($) property | Dec. 31, 2020 USD ($) property | Dec. 31, 2019 USD ($) property
Schedule of Equity Method Investments [Line Items] |  |  |  |
Number of unconsolidated joint ventures | property |  |  | 3 |
Advances to unconsolidated joint ventures, net |  |  | $ 0 | $ 76
Investments in and advances to unconsolidated joint ventures |  |  | 402,871 | 774,381
Equity Method Investment, Nonconsolidated Investee or Group of Investees |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity method investments |  |  | $ 6,000 | 51,000
Preferred equity method 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% |
SHOP JV |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Number of unconsolidated joint ventures | property |  |  | 19 |
Investment ownership percentage |  |  | 54.00% |
Equity method investments |  |  | $ 357,581 | 428,258
Life Science JVs |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Number of unconsolidated joint ventures | property |  |  | 1 |
Investment ownership percentage |  |  | 49.00% |
Equity method investments |  |  | $ 24,879 | 0
Medical Office JVs |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Number of unconsolidated joint ventures | property |  |  | 3 |
Equity method investments |  |  | $ 9,673 | 9,845
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% |
Other SHOP JVs |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Number of unconsolidated joint ventures | property |  |  | 0 |
Equity method investments |  |  | $ 9,157 | $ 10,372
Other SHOP JVs | Minimum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Investment ownership percentage |  |  | 41.00% |
Other SHOP JVs | Maximum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Investment ownership percentage |  |  | 47.00% |
CCRC JV Investment |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Number of unconsolidated joint ventures | property |  |  | 2 |
Investment ownership percentage | 49.00% |  | 49.00% | 49.00%
Equity method investments |  |  | $ 1,581 | $ 325,830
Otay Ranch |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Investment ownership percentage |  |  | 90.00% |
Number of joint ventures | property |  |  | 1 |
HCP Ventures IV, LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Investment ownership percentage |  |  | 20.00% |
H C P 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% |
K&Y JVs |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Number of unconsolidated joint ventures | property |  | 1 |  | 1
Investment ownership percentage |  |  |  | 80.00%
Proceeds from sale of equity method investments | $ 12,000 | $ 4,000 |  |

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- Definition Long-Term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. This does not include advances to clients. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04.2) -URI http://asc.fasb.org/extlink&oid=120401414&loc=d3e603758-122996 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6812-107765 + Details
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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