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Commitments and Contingencies - Schedule of Contractual Obligation (Details) $ in Thousands | Dec. 31, 2020 USD ($)
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Other Commitments [Line Items] |
Commitments | $ 317,012
Commitments related to assets classified as discontinued operations | 4,000
Construction Loan Commitments |
Other Commitments [Line Items] |
Commitments | 11,137
Lease and other contractual commitments |
Other Commitments [Line Items] |
Commitments | 109,126
Development Commitments |
Other Commitments [Line Items] |
Commitments | 196,749
Allowance for Tenant Improvement |
Other Commitments [Line Items] |
Commitments | $ 28,000

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- Definition Commitments Related To Assets Classified As Discontinued Operations + References No definition available. + Details
Name: | peak_CommitmentsRelatedToAssetsClassifiedAsDiscontinuedOperations
Namespace Prefix: | peak_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. + References No definition available. + Details
Name: | us-gaap_ContractualObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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- Details
Name: | us-gaap_OtherCommitmentsAxis=peak_ConstructionLoanCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_OtherCommitmentsAxis=peak_LeaseandothercommitmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_OtherCommitmentsAxis=peak_DevelopmentCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_OtherCommitmentsAxis=peak_AllowancefortenantimprovementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |