Impairment Calculation, Price per Unit

No definition available.

Name:	hcp_ImpairmentCalculationPriceperUnit
Namespace Prefix:	hcp_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

Impairment Test, Market Capitalization Rate

+ References

No definition available.

+ Details

Name:	hcp_ImpairmentTestMarketCapitalizationRate
Namespace Prefix:	hcp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Number Of Real Estate Properties Impaired

+ References

No definition available.

+ Details

Name:	hcp_NumberOfRealEstatePropertiesImpaired
Namespace Prefix:	hcp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Real Estate Investment Property, Aggregate Carrying Value Before Impairment

+ References

No definition available.

+ Details

Name:	hcp_RealEstateInvestmentPropertyAggregateCarryingValueBeforeImpairment
Namespace Prefix:	hcp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228

+ Details

Name:	us-gaap_AssetImpairmentCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(f))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

+ Details

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

- 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

Name:	us-gaap_RealEstateLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=hcp_SeniorHousingTripleNetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=hcp_MedicalOfficeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=hcp_SeniorHousingTripleNetSHOPMOBandOtherNonReportableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=hcp_SeniorHousingOperatingPortfolioMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_WeightedAverageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=hcp_TwentysevenShopAssetsEightSeniorHousingTriplenetAssetsThreeMOBsandOneOtherNonReportableAssetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Real Estate Transactions - Impairments of Real Estate (Details) $ / item in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) $ / item property	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($) property
Real Estate [Line Items]
Impairments and loan loss reserves (recoveries), net	$ 39,123		$ 8,858
Senior housing triple-net
Real Estate [Line Items]
Number of real estate properties impaired \| property	2
Medical office
Real Estate [Line Items]
Impairments and loan loss reserves (recoveries), net			$ 9,000
Number of real estate properties impaired \| property	2		2
Senior Housing Triple Net, SHOP, MOB, and Other Non-Reportable
Real Estate [Line Items]
Impairments and loan loss reserves (recoveries), net	$ 31,000
SHOP
Real Estate [Line Items]
Impairments and loan loss reserves (recoveries), net		$ 10,000
Number of real estate properties impaired \| property	15
Minimum
Real Estate [Line Items]
Impairment test, market capitalization rate	7.16%
Impairment calculation, price per unit \| $ / item	38
Maximum
Real Estate [Line Items]
Impairment test, market capitalization rate	9.92%
Impairment calculation, price per unit \| $ / item	95
Weighted Average
Real Estate [Line Items]
Impairment test, market capitalization rate	9.32%
Impairment calculation, price per unit \| $ / item	68
Seven Shop Assets, Four Senior Housing Triple-net Assets, Two MOBs, and One Other Non-Reportable Asset
Real Estate [Line Items]
Real Estate Investment Property, Aggregate Carrying Value Before Impairment	$ 200,000
Real Estate Held-for-sale	$ 169,000