Carrying amount of healthcare facilities which are secured by mortgage debt.

No definition available.

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Namespace Prefix:	peak_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number of healthcare facilities which are secured by mortgage debt.

+ References

No definition available.

+ Details

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

- Definition

Number Of Properties Acquired

+ References

No definition available.

+ Details

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Namespace Prefix:	peak_
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Balance Type:	na
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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

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

- Definition

Amount of the required periodic payments applied to principal.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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

- Details

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Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=peak_SeniorHousingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
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Debt - Mortgage Debt (Details) $ in Thousands	1 Months Ended					12 Months Ended
Debt - Mortgage Debt (Details) $ in Thousands	Nov. 30, 2020 USD ($) property	Jul. 31, 2019 USD ($) property	Jun. 30, 2019 property	May 31, 2019 USD ($) property	Apr. 30, 2019 property	Dec. 31, 2020 USD ($) facility	Dec. 31, 2019 USD ($) facility	Dec. 31, 2018 USD ($)
Debt Instrument [Line Items]
Long-term debt, gross						$ 6,346,370
Weighted-average interest rate (as a percent)						0.30%	2.04%
Senior Housing
Debt Instrument [Line Items]
Number of properties acquired \| property			1
Senior Housing
Debt Instrument [Line Items]
Number of properties acquired \| property	1
Senior Housing \| Senior Housing
Debt Instrument [Line Items]
Number of properties acquired \| property		5		3	9
Mortgage Debt
Debt Instrument [Line Items]
Long-term debt, gross	$ 36,000	$ 112,000		$ 50,000		$ 216,780	$ 12,000
Number of healthcare facilities used to secure debt (in facilities) \| facility						6	4
Debt instrument, collateral, healthcare facilities carrying value						$ 517,000	$ 38,000
Debt instrument, periodic payment, principal						$ 18,000	$ 4,000	$ 5,000
Weighted-average interest rate (as a percent)	3.87%	4.89%		4.83%		3.73%