Represents the ownership percentage in joint venture.

No definition available.

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- Definition

Loans And Leases Receivable, Purchase Option, Number Of Properties

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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- Definition

The gross carrying amount of loans receivable that are subordinated to receivables held by other entities.

+ References

No definition available.

+ Details

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Balance Type:	debit
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- Definition

The number of loans to VIE borrowers.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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- Definition

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

+ References

No definition available.

+ Details

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- Definition

The number of VIE borrowers in which the entity has invested in marketable debt securities.

+ References

No definition available.

+ Details

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- Definition

Represents the period of call-option retained.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Number of properties leased by the entity to tenants that have been identified as a VIE.

+ References

No definition available.

+ Details

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

- Definition

Tax Benefit Of Initial Consolidation Of Variable Interest Entity

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Number of tenants of properties leased by entity for which the tenant is considered a VIE tenant.

+ References

No definition available.

+ Details

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

- Definition

Represents the number of controlling ownership interest entities, in which the company holds the interest and is the managing member of the partnership.

+ References

No definition available.

+ Details

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

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (bb)
-URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5710-111685

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The gain (loss) recognized on initial consolidation of a variable interest entity (VIE) when the VIE is not a business (as defined).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5710-111685

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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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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=108788376&loc=SL6759159-111685

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Data Type:	num:percentItemType
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Variable Interest Entities - Narrative (Details) $ in Thousands, £ in Millions	1 Months Ended	3 Months Ended		5 Months Ended	12 Months Ended
	Aug. 31, 2018	Mar. 31, 2018 USD ($)	Mar. 31, 2018 GBP (£)	Dec. 31, 2018 USD ($) property joint_venture loan tenant	Dec. 31, 2018 USD ($) property joint_venture entity loan tenant	Dec. 31, 2016 USD ($) property	Mar. 31, 2018 GBP (£)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 GBP (£) property
Variable Interest Entity [Line Items]
Mezzanine \| $				$ 21,013	$ 21,013			$ 269,299
Loans receivable, net \| $				$ 62,998	$ 62,998			$ 313,326
Consolidated Variable Interest Entities
Variable Interest Entity [Line Items]
Number of properties leased (in properties) \| property				6	6
Downreit Partnerships [Member]
Variable Interest Entity [Line Items]
Controlling interest entity controlling ownership interest \| entity					5
Unconsolidated Variable Interest Entities
Variable Interest Entity [Line Items]
Number of unconsolidated joint ventures (in joint ventures) \| joint_venture				4	4
Number of VIE borrowers with marketable debt securities (in joint ventures) \| joint_venture				1	1
Number of VIE borrowers with debt securities and loan (in loans) \| loan				1	1
Number of VIE tenants (in tenants) \| tenant				7	7
VIE tenants-operating leases
Variable Interest Entity [Line Items]
Number of properties leased (in properties) \| property				48	48
CCRC OpCo
Variable Interest Entity [Line Items]
Joint venture ownership percentage				49.00%	49.00%
Vintage Park Development JV
Variable Interest Entity [Line Items]
Ownership percentage (as a percent)					85.00%
MSREI MOB JV
Variable Interest Entity [Line Items]
Ownership percentage (as a percent)	51.00%			51.00%
Waldwick
Variable Interest Entity [Line Items]
Ownership percentage (as a percent)					85.00%
MMCG
Variable Interest Entity [Line Items]
Loss on consolidation		$ (41,000)	£ (29)
Tax benefit		3,000	2
Total liabilities		13,000					£ 9
HCP Ventures V
Variable Interest Entity [Line Items]
Ownership percentage (as a percent)					51.00%
Bridge Loan \| MMCG
Variable Interest Entity [Line Items]
Period of call-option retained						3 years
Loans receivable, net						$ 131,000			£ 105
Number of properties (in properties) \| property						7			7
Loss on consolidation		(41,000)	£ (29)
Senior housing triple-net \| Loan-seller financing
Variable Interest Entity [Line Items]
Mezzanine \| $				$ 10,000	$ 10,000
Term of facility					5 years
Senior housing triple-net \| Loan-senior secured
Variable Interest Entity [Line Items]
Number of VIE tenants (in tenants) \| tenant				7	7
Vintage Park Development JV
Variable Interest Entity [Line Items]
Ownership percentage (as a percent)					90.00%
Watertown JV
Variable Interest Entity [Line Items]
Ownership percentage (as a percent)					95.00%
Hayden JV
Variable Interest Entity [Line Items]
Ownership percentage (as a percent)					99.00%
Property, plant and equipment \| MMCG
Variable Interest Entity [Line Items]
Total assets		114,000					81
Finite-lived intangible assets \| MMCG
Variable Interest Entity [Line Items]
Total assets		$ 5,000					£ 4