Asset Purchase Transaction Costs

No definition available.

Name:	nhi_AssetPurchaseTransactionCosts
Namespace Prefix:	nhi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This element represents the total amount of capital improvements that an entity has committed to complete.

+ References

No definition available.

+ Details

Name:	nhi_CapitalImprovementsCommitment
Namespace Prefix:	nhi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This item represents contingent payments that would be due to a development manager if certain operating metrics or performance thresholds were met.

+ References

No definition available.

+ Details

Name:	nhi_ContingentIncentivePayments
Namespace Prefix:	nhi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The initial rate charged under a lease entered into in connection with the purchase of a property.

+ References

No definition available.

+ Details

Name:	nhi_InitialLeaseRate
Namespace Prefix:	nhi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This item represents consideration received in exchange for granting an amendment to a lease agreement.

+ References

No definition available.

+ Details

Name:	nhi_LeaseAmendmentConsideration
Namespace Prefix:	nhi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This item represents the maximum amount a lease will escalate each year.

+ References

No definition available.

+ Details

Name:	nhi_LeaseEscalatorMaximum
Namespace Prefix:	nhi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This item represents the minimum rate a lease payment escalates each year.

+ References

No definition available.

+ Details

Name:	nhi_LeaseEscalatorMinimum
Namespace Prefix:	nhi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The initial lease escalator to be charged starting after lease year 4 under a lease entered into in connection with the purchase of a property.

+ References

No definition available.

+ Details

Name:	nhi_LeaseEscalatorRateafterLeaseYear4
Namespace Prefix:	nhi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This item relates to the percent of facility NOI to be paid as lease payment.

+ References

No definition available.

+ Details

Name:	nhi_LeasePaymentNOIBasedPercent
Namespace Prefix:	nhi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This item represents a lessee's payment to acquire a purchase option.

+ References

No definition available.

+ Details

Name:	nhi_LesseePaymentToAcquirePurchaseOption
Namespace Prefix:	nhi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This item represents the number of shares of a lessor that are owned by a significant lessee as of the end of the reporting period.

+ References

No definition available.

+ Details

Name:	nhi_LessorEquitySharesOwnedSignificantLessee
Namespace Prefix:	nhi_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

This item represents the amount of loan and realty impairments net of any applicable gains or recoveries.

+ References

No definition available.

+ Details

Name:	nhi_LoanandLeaseLossesandRecoveriesNet
Namespace Prefix:	nhi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This element represents the minimum annual lease income to be received.

+ References

No definition available.

+ Details

Name:	nhi_MinimumAnnualLeaseIncome
Namespace Prefix:	nhi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This item represents the original cost of corporate assets that are not part of the investment portfolio.

+ References

No definition available.

+ Details

Name:	nhi_NonportfolioAssetsOriginalCost
Namespace Prefix:	nhi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number Of Additional Lease Renewal Options

+ References

No definition available.

+ Details

Name:	nhi_NumberOfAdditionalLeaseRenewalOptions
Namespace Prefix:	nhi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of lessees of real estate property at the end of the period.

+ References

No definition available.

+ Details

Name:	nhi_NumberOfLessees
Namespace Prefix:	nhi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number Of Real Estate Properties Acquired

+ References

No definition available.

+ Details

Name:	nhi_NumberOfRealEstatePropertiesAcquired
Namespace Prefix:	nhi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

This item relates to the number of lease portfolios which is group of properties leased through one or more leases to the same operator or to related operators.

+ References

No definition available.

+ Details

Name:	nhi_NumberofLeasePortfolios
Namespace Prefix:	nhi_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of Master Leases

+ References

No definition available.

+ Details

Name:	nhi_NumberofMasterLeases
Namespace Prefix:	nhi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

This element represents the percentage of income recognized from a lease tenant.

+ References

No definition available.

+ Details

Name:	nhi_PercentageOfContinuingRevenue
Namespace Prefix:	nhi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents the rental revenue rate earned during the period from lessee-operators based on revenues generated in their operations, generally in excess of a base amount. Generally stipulated in the lease agreement, it usually will provide for a fixed percentage of revenue to be paid as additional (or possibly only) rent due the lessor, and may be based on gross revenues, net revenues, or multiple variations thereof.

+ References

No definition available.

+ Details

Name:	nhi_PercentageRentRate
Namespace Prefix:	nhi_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

This item represents the amount of an outstanding purchase option.

+ References

No definition available.

+ Details

Name:	nhi_PurchaseOptionAmount
Namespace Prefix:	nhi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The element represents the original cost of all portfolio leased assets.

+ References

No definition available.

+ Details

Name:	nhi_RealEstateInvestmentPropertyPortfolioAssets
Namespace Prefix:	nhi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Real Estate Investments During The Period

+ References

No definition available.

+ Details

Name:	nhi_RealEstateInvestmentsDuringThePeriod
Namespace Prefix:	nhi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This item represents an accumulated straight-line rent receivable balance written off as a result of a lease amendment or termination.

+ References

No definition available.

+ Details

Name:	nhi_WriteOffOfStraightLineRentReceivable
Namespace Prefix:	nhi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property, by the lessor or lessee, respectively. Such receivable is reduced by allowances attributable to, for instance, credit risk associated with a lessee.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 35
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=77913719&loc=d3e40879-112712

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77902458&loc=d3e39896-112707

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 25
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=77902458&loc=d3e39927-112707

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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

- Definition

Term of lessor's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888428&loc=SL77919359-209981

+ Details

Name:	us-gaap_LessorOperatingLeaseRenewalTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

Name:	us-gaap_LessorOperatingLeaseTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of states the entity operates in as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of units in a real estate property owned as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfUnitsInRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77888428&loc=SL77919372-209981

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=77888421&loc=SL77919311-209978

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 50
-Paragraph 6A
-URI http://asc.fasb.org/extlink&oid=109225645&loc=SL77927221-108306

+ Details

Name:	us-gaap_OperatingLeaseLeaseIncome
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77902458&loc=d3e39896-112707

+ Details

Name:	us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

+ Details

Name:	us-gaap_PaymentsToAcquireRealEstate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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=6879938&loc=d3e572229-122910

+ Details

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

- Definition

Difference between actual rental income due and rental income recognized on a straight-line basis.

+ 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 (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

+ Details

Name:	us-gaap_StraightLineRent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	srt_MajorCustomersAxis=nhi_WingateHealthcareMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MajorCustomersAxis=nhi_HolidayLeaseAmendmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MajorCustomersAxis=nhi_HolidayAcquisitionHoldingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MajorCustomersAxis=nhi_NationalHealthcareCorporationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	invest_InvestmentAxis=nhi_NHC1991LeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	invest_InvestmentAxis=nhi_NHC2013LeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MajorCustomersAxis=nhi_NonPerformingLeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MajorCustomersAxis=nhi_SHRegencyLeasingLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MajorCustomersAxis=nhi_TheLasalleGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MajorCustomersAxis=nhi_LandmarkSeniorLivingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MajorCustomersAxis=nhi_BAKAEnterprisesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MajorCustomersAxis=nhi_BickfordSeniorLivingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MajorCustomersAxis=nhi_SeniorLivingCommunitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MajorCustomersAxis=nhi_DefaultTenantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MajorCustomersAxis=nhi_MaterialNonComplianceTenantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=nhi_SeniorHousingCommunityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=nhi_SkilledNursingFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	invest_InvestmentAxis=nhi_SubleasedFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=nhi_HospitalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=nhi_MedicalOfficeBuildingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=nhi_IndependentLivingFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=nhi_AssetHeldForSaleMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=nhi_VeroBeachAcquisitionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=nhi_AssistedLivingFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=nhi_RightofFirstOfferMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=nhi_HolidayLeaseAmendmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	invest_InvestmentAxis=nhi_ForfeitureAmountMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	invest_InvestmentAxis=nhi_CashPortionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=nhi_PriortoLeaseAmendmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	nhi_PropertyLocationAxis=nhi_IndianaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Real Estate (Narrative) (Details)	3 Months Ended
Real Estate (Narrative) (Details)	Mar. 31, 2019 USD ($) Master_Leases properties beds_or_units renewalOptions shares	Mar. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)
Number of Real Estate Properties \| properties	220
Number of States in which Entity Operates	33
Nonportfolio Assets, Original Cost	$ 2,471,000
Real Estate Investment Property, Portfolio Assets	$ 2,900,846,000
Number of Lessees	30
Payments to Acquire Real Estate	$ 50,122,000	$ 14,404,000
Lessee Payment To Acquire Purchase Option	0	1,275,000
Real Estate Investments During The Period	90,200,000
Operating Leases, Income Statement, Lease Revenue	(70,953,000)	(69,253,000)
Deferred Rent Receivables, Net	75,123,000		$ 105,620,000
Straight Line Rent	$ 5,228,000	5,962,000
Lease Renewal Period In Years	5 years
Escrow Deposit	$ 8,208,000		8,208,000
Loan and Lease Losses and Recoveries, Net	2,500,000	0
Real Estate Held-for-sale	$ 3,745,000		$ 0
Wingate Healthcare [Member]
Number of Units in Real Estate Property \| beds_or_units	267
Payments to Acquire Real Estate	$ 50,300,000
Asset Purchase Transaction Costs	300,000
Real Estate Investments During The Period	$ 52,200,000
Lessor, Operating Lease, Term of Contract	10 years
Initial lease rate	7.50%
Number Of Real Estate Properties Acquired \| properties	1
Number Of Additional Lease Renewal Options \| renewalOptions	3
Lease Renewal Period In Years	5 years
Capital Improvements Commitment	$ 1,900,000
Contingent Incentive Payments	5,000,000
Holiday Lease Amendment [Member]
Real Estate Investments During The Period	$ 38,000,000
Lease Escalator Minimum	2.00%
Lease Escalator Maximum	3.00%
Number Of Real Estate Properties Acquired \| properties	1
Holiday Acquisition Holdings [Member]
Number of Real Estate Properties \| properties	26
Initial lease rate	6.71%
Operating Leases, Income Statement, Lease Revenue	$ (9,930,000)	$ (10,954,000)
Percentage of Continuing Revenue	13.00%	15.00%
Straight Line Rent	$ (1,630,000)	$ (1,530,000)
National Healthcare Corporation [Member]
Number of Real Estate Properties \| properties	42
Number of Master Leases \| Master_Leases	2
Operating Leases, Income Statement, Lease Revenue	$ (9,748,000)	$ (9,674,000)
Percentage of Continuing Revenue	13.00%	13.00%
Lessor Equity Shares Owned, Significant Lessee \| shares	1,630,462
National Healthcare Corporation [Member] \| NHC - 1991 Lease [Member]
Number of Real Estate Properties \| properties	35
Number Of Additional Lease Renewal Options \| renewalOptions	2
Lease Renewal Period In Years	5 years
Percentage Rent Rate	0.04
Minimum Annual Lease Income	$ 30,750,000
National Healthcare Corporation [Member] \| NHC - 2013 Lease [Member]
Number Of Real Estate Properties Acquired \| properties	7
Percentage Rent Rate	0.04
Minimum Annual Lease Income	$ 3,450,000
Purchase Option Amount	$ 49,000,000
Non-Performing Lease [Member]
Number of Lease Portfolios	3
SH Regency Leasing LLC [Member]
Number of Real Estate Properties \| properties	3
Lease Payment, NOI Based, Percent	95.00%
The Lasalle Group [Member]
Number of Real Estate Properties \| properties	5
Lease Payment, NOI Based, Percent	100.00%
Operating Lease, Lease Income	$ 0
Landmark Senior Living [Member]
Operating Lease, Lease Income	$ 625,000
BAKA Enterprises [Member]
Lease Payment, NOI Based, Percent	95.00%
Lessor, Operating Lease, Term of Contract	8 years
Bickford Senior Living [Member]
Number of Real Estate Properties \| properties	50
Operating Leases, Income Statement, Lease Revenue	$ (13,244,000)	$ (11,445,000)
Percentage of Continuing Revenue	17.00%	16.00%
Straight Line Rent	$ (1,371,000)	$ (1,169,000)
Minimum Annual Lease Income	48,635,000
Operating Lease, Lease Income	$ 53,968,000
Senior Living Communities [Member]
Number of Real Estate Properties \| properties	11
Number of Units in Real Estate Property \| beds_or_units	2,216
Lessor, Operating Lease, Term of Contract	15 years
Lease Escalator Rate after Lease Year 4	3.00%
Operating Leases, Income Statement, Lease Revenue	$ (11,532,000)	$ (11,449,000)
Percentage of Continuing Revenue	15.00%	16.00%
Straight Line Rent	$ (1,058,000)	$ (1,359,000)
Number Of Additional Lease Renewal Options \| renewalOptions	2
Lease Renewal Period In Years	5 years
Capital Improvements Commitment	$ 3,100,000
Default Tenant [Member]
Operating Leases, Income Statement, Lease Revenue	$ (702,000)	$ (3,172,000)
Material Non-Compliance Tenant [Member]
Percentage of Continuing Revenue	1.00%	4.00%
Senior Housing Community [Member]
Number of Real Estate Properties \| properties	143
Skilled Nursing Facility [Member]
Number of Real Estate Properties \| properties	72
Skilled Nursing Facility [Member] \| National Healthcare Corporation [Member]
Number of Real Estate Properties \| properties	39
Skilled Nursing Facility [Member] \| National Healthcare Corporation [Member] \| Subleased Facilities [Member]
Number of Real Estate Properties \| properties	4
Hospital [Member]
Number of Real Estate Properties \| properties	3
Medical Office Building [Member]
Number of Real Estate Properties \| properties	2
Independent Living Facility [Member] \| National Healthcare Corporation [Member]
Number of Real Estate Properties \| properties	3
Asset Held For Sale [Member]
Number of Real Estate Properties \| properties	2
Write Off Of Straight Line Rent Receivable	$ 124,000
Vero Beach Acquisition [Member] \| Independent Living Facility [Member] \| Holiday Acquisition Holdings [Member]
Number of Units in Real Estate Property \| beds_or_units	157
Vero Beach Acquisition [Member] \| Assisted Living Facility [Member] \| Holiday Acquisition Holdings [Member]
Number of Units in Real Estate Property \| beds_or_units	71
Right of First Offer [Member] \| Wingate Healthcare [Member]
Number of Real Estate Properties \| properties	2
Holiday Lease Amendment [Member]
Lease Amendment Consideration	$ 55,125,000
Escrow Deposit	21,275,000
Holiday Lease Amendment [Member] \| Forfeiture Amount [Member]
Escrow Deposit	10,637,000
Holiday Lease Amendment [Member] \| Cash Portion [Member]
Lease Amendment Consideration	17,125,000
Holiday Lease Amendment [Member] \| Holiday Acquisition Holdings [Member]
Minimum Annual Lease Income	31,500,000
Prior to Lease Amendment [Member] \| Holiday Acquisition Holdings [Member]
Minimum Annual Lease Income	$ 39,000,000
Indiana [Member] \| SH Regency Leasing LLC [Member]
Lease Payment, NOI Based, Percent	100.00%