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Held for Sale - Narrative (Details) - property	Dec. 31, 2022	Dec. 31, 2021
Asset Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties held for sale	1	0

X

- Definition

Number of properties held for sale.

+ References

No definition available.

+ Details

Name:	hr_NumberOfPropertiesHeldForSale
Namespace Prefix:	hr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

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

X

- Details

Name:	us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis=hr_AssetHeldforsaleMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: