Business acquisition purchase price allocation mortgage note financing net acquired.

No definition available.

Name:	hr_BusinessAcquisitionPurchasePriceAllocationMortgageNoteFinancingNetAcquired
Namespace Prefix:	hr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Business Combination, Consideration Transferred, Construction Note Receivable Prepayment

+ References

No definition available.

+ Details

Name:	hr_BusinessCombinationConsiderationTransferredConstructionNoteReceivablePrepayment
Namespace Prefix:	hr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Real Property

+ References

No definition available.

+ Details

Name:	hr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRealProperty
Namespace Prefix:	hr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Mortgage loans on real estate unscheduled principal reductions.

+ References

No definition available.

+ Details

Name:	hr_MortgageLoansOnRealEstateUnscheduledPrincipalReductions
Namespace Prefix:	hr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of land parcel.

+ References

No definition available.

+ Details

Name:	hr_NumberOfLandParcel
Namespace Prefix:	hr_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the federal income tax basis of mortgage loans on real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

-Section S99

-Paragraph 6

-Subparagraph (SX 210.5-04.(c) Schedule IV)

-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 29

-Article 12

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph c

-Subparagraph Schedule IV

-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

-Section S99

-Paragraph 1

-Subparagraph (SX 210.12-29.8)

-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

+ Details

Name:	us-gaap_MortgageLoansOnRealEstateFederalIncomeTaxBasis1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

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

Schedule IV - Mortgage Loans on Real Estate (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended			12 Months Ended	1 Months Ended
	Dec. 31, 2013	Dec. 31, 2011	Dec. 31, 2013 Texas [Member]	Dec. 31, 2012 Iowa [Member] ParcelsLand	Sep. 30, 2013 Orthopedic Surgical Facility [Member] Missouri [Member]
Mortgage Loans on Real Estate [Line Items]
Unscheduled principal reductions on mortgage notes	$ 2.4	$ 0.5
Facility acquired					102.6
Construction mortgage note receivable prepayment	97.2				97.2
Mortgage note financing			9.9
Number of land parcel				2
Aggregate total cost of mortgages for federal income tax purposes	$ 125.5