Represents number of unconsolidated joint ventures between entity and an institutional capital partner.

No definition available.

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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 https://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(10))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8813-108599

+ Details

Name:	us-gaap_EquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of investment in equity method investee and investment in and advance to affiliate.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(18))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585

+ Details

Name:	us-gaap_PaymentsToAcquireEquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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Investments in and Advances to Unconsolidated Joint Ventures (Details) $ in Thousands	1 Months Ended
	Apr. 28, 2023 USD ($) property	Dec. 31, 2021 USD ($)	Mar. 31, 2023 USD ($) property joint_venture	Dec. 31, 2022 USD ($)	Aug. 31, 2022 property joint_venture
Schedule of Equity Method Investments [Line Items]
Investments in and advances to unconsolidated joint ventures \| $			$ 714,679	$ 706,677
Medical Office JVs
Schedule of Equity Method Investments [Line Items]
Property count \| property			2
Number of unconsolidated joint ventures (in joint ventures) \| joint_venture			2
HCP Ventures IV, LLC
Schedule of Equity Method Investments [Line Items]
Investment ownership percentage			20.00%
HCP Ventures IV, LLC \| Subsequent Event
Schedule of Equity Method Investments [Line Items]
Property count \| property	1
Investment ownership percentage	80.00%
Cash paid \| $	$ 4,000
Suburban Properties, LLC
Schedule of Equity Method Investments [Line Items]
Investment ownership percentage			67.00%
Other Non-Reporting Segment \| SWF SH JV
Schedule of Equity Method Investments [Line Items]
Property count \| property			19
Investment ownership percentage			54.00%
Equity method investments \| $			$ 343,873	345,978
Life Science \| South San Francisco JVs
Schedule of Equity Method Investments [Line Items]
Property count \| property			7
Investment ownership percentage			70.00%		70.00%
Equity method investments \| $			$ 319,535	309,969
Number of unconsolidated joint ventures (in joint ventures) \| joint_venture					7
Life Science \| Life Science JV
Schedule of Equity Method Investments [Line Items]
Property count \| property			1
Investment ownership percentage			49.00%
Equity method investments \| $			$ 26,817	26,601
Life Science \| Needham Land Parcel JV
Schedule of Equity Method Investments [Line Items]
Property count \| property			0
Investment ownership percentage		38.00%	38.00%
Equity method investments \| $			$ 15,658	15,391
Cash paid \| $		$ 13,000
Life Science \| Life Science JV in San Francisco, California
Schedule of Equity Method Investments [Line Items]
Property count \| property					7
Life Science \| Life Science JV in San Francisco, California \| Life Science JV in San Francisco, California
Schedule of Equity Method Investments [Line Items]
Investment ownership percentage					30.00%
Medical Office \| Medical Office JVs
Schedule of Equity Method Investments [Line Items]
Property count \| property			3
Equity method investments \| $			$ 8,796	$ 8,738
Medical Office \| Medical Office JVs \| Minimum
Schedule of Equity Method Investments [Line Items]
Investment ownership percentage			20.00%
Medical Office \| Medical Office JVs \| Maximum
Schedule of Equity Method Investments [Line Items]
Investment ownership percentage			67.00%