This element represents the agreed selling price for an asset classified at the balance sheet date as held for sale.

No definition available.

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

- Definition

Asset Purchase Transaction Costs

+ References

No definition available.

+ Details

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 the number of free rent months allowed at the inception of a new lease.

+ References

No definition available.

+ Details

Name:	nhi_FreeRentLeasePeriodNumberofMonths
Namespace Prefix:	nhi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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 the percentage of ownership interest which is retained subsequent to contribution into a joint venture.

+ References

No definition available.

+ Details

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

- Definition

This item represents the percentage of ownership interest which is surrendered subsequent to contribution into a joint venture.

+ References

No definition available.

+ Details

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

- Definition

The initial escalator rate charged from lease year 3 through the end of the lease term under a lease entered into in connection with the purchase of a property.

+ References

No definition available.

+ Details

Name:	nhi_LeaseEscalatorRateAfterLeaseYear3
Namespace Prefix:	nhi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The initial escalator rate charged from lease year 1 and through lease year 3 under a lease entered into in connection with the purchase of a property.

+ References

No definition available.

+ Details

Name:	nhi_LeaseEscalatorRateFromLeaseYear1toLeaseYear3
Namespace Prefix:	nhi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The initial lease escalator rate charged from lease year 2 through lease year 4 under a lease entered into in connection with the purchase of a property.

+ References

No definition available.

+ Details

Name:	nhi_LeaseEscalatorRateLeaseYear2toLeaseYear4
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 represents the amount of a payment or a series of payments related to a lease incentive commitment which has been assessed as not probable and therefore is not recorded as payable.

+ References

No definition available.

+ Details

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

- 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

The concept represents a total loan term in number of years

+ References

No definition available.

+ Details

Name:	nhi_LoanTerm
Namespace Prefix:	nhi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

This item represents the maximum commitment for all active development projects.

+ References

No definition available.

+ Details

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

- 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

This concept reflects the interest rate to be received on a loan receivable.

+ References

No definition available.

+ Details

Name:	nhi_NoteReceivableInterestRate
Namespace Prefix:	nhi_
Data Type:	num:percentItemType
Balance Type:	na
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 element represents the number of real estate properties to be constructed, based on an agreement or commitment.

+ References

No definition available.

+ Details

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

- Definition

This item represents the number of acquisition transactions completed within a specific time frame.

+ References

No definition available.

+ Details

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

- 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 amount of payments to be made to the seller of a real estate property contingent upon the occurrence of specific events.

+ References

No definition available.

+ Details

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

- 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

This item represents the percentage rate to be applied to 12 month forward rent to determine the amount of a purchase option on real estate.

+ References

No definition available.

+ Details

Name:	nhi_PurchaseOptionAmountForwardRentCapitalizationRate
Namespace Prefix:	nhi_
Data Type:	num:percentItemType
Balance Type:	na
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 the number of real estate properties for which the entity has made a binding commitment to purchase.

+ References

No definition available.

+ Details

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

- Definition

This item refers to the number of properties acquired during the period.

+ References

No definition available.

+ Details

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

- Definition

This item represents the remaining unfunded development commitment related to a lease property.

+ References

No definition available.

+ Details

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

- Definition

Amount of amortization of lease incentive costs incurred by the lessor for the benefit of the lessee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 25
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+ Details

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

- Definition

Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

+ Details

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

- 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://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 20
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-Paragraph 2
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8)
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-SubTopic 20
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-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77902458&loc=d3e39896-112707

+ Details

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

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

+ Details

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

- Definition

The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.14(d))
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

+ Details

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

- Definition

Area of land subject to a ground lease.

+ References

No definition available.

+ Details

Name:	us-gaap_LandSubjectToGroundLeases
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_LessorLeasingArrangementsOperatingLeasesRenewalTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_LessorLeasingArrangementsOperatingLeasesTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of lease payments to be received by lessor for operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=77888428&loc=SL77919396-209981

+ Details

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

- Definition

Total carrying amount of mortgage loans as of the balance sheet date.

+ 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)
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29.6)
-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

+ Details

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

- Definition

The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans.

+ References

Reference 1: 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)
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-Paragraph 6
-Subparagraph (SX 210.5-04.(c) Schedule IV)
-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

+ Details

Name:	us-gaap_MortgageLoansOnRealEstateInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of debt that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586

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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

+ Details

Name:	us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The total amount of [all] liabilities that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

+ Details

Name:	us-gaap_NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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

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://www.xbrl.org/2003/role/presentationRef
-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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585

+ Details

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

- Definition

This element represents the rental revenue earned during the period from lessee-operators based on revenues generated in their operations, generally in excess of a base amount. Such rental revenue is generally stipulated in the lease agreement, 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. Percentage rent is often required under leases with retail outlets located on premises owned by hoteliers, cruise lines, others in the hospitality industry, and shopping mall operators, among others.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_PercentageRent
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://www.xbrl.org/2003/role/presentationRef
-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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

+ Details

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

- Definition

Amount of the adjustment to rental revenues to measure escalating leasing revenues on a straight line basis.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_MajorCustomersAxis=nhi_EvolveSeniorLivingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorCustomersAxis=nhi_EnsignGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorCustomersAxis=nhi_AcadiaHealthcareMember
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Real Estate (Narrative) (Details)	12 Months Ended
Real Estate (Narrative) (Details)	Dec. 31, 2017 USD ($) a properties Master_Leases renewalOptions beds_or_units shares	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2016	Dec. 31, 2014 USD ($)
Remaining Unfunded Development Commitment	$ 63,943,000
Number of Real Estate Properties \| properties	209
Number of States in which Entity Operates	32
Payments to Acquire Real Estate	$ 157,214,000	$ 359,257,000	$ 106,315,000
Lessee Payment To Acquire Purchase Option	1,250,000	0	0
Gains (Losses) on Sales of Investment Real Estate	50,000	4,582,000	1,126,000
Noncash or Part Noncash Acquisition, Value of Liabilities Assumed	1,855,000	430,000	1,076,000
Nonportfolio Assets, Original Cost	1,298,000
Real Estate Investment Property, Portfolio Assets	$ 2,664,605,000
Number of Lessees	27
Operating Leases, Income Statement, Lease Revenue	$ 265,127,000	232,353,000	214,407,000
Mortgage Loans on Real Estate	98,110,000	99,179,000	101,124,000		$ 34,850,000
Deferred Rent Receivables, Net	97,359,000	72,518,000
Amortization of Lease Incentives	119,000	40,000	40,000
Straight Line Rent	26,090,000	22,198,000	24,623,000
Construction in Progress, Gross	2,678,000	15,729,000
Maximum Commitment For All Active Development Projects	88,380,000
Equity Method Investment, Ownership Percentage				85.00%
Evolve Senior Living [Member]
Mortgage Loans on Real Estate	$ 10,000,000
Number of Units in Real Estate Property \| beds_or_units	40
Note Receivable Interest Rate	8.00%
Loan Term	5 years
Ensign Group [Member]
Real Estate Properties, Number Acquired \| properties	1
Real Estate Properties, Commitment To Purchase \| properties	3
Payments to Acquire Real Estate	$ 13,846,000
Lessee Payment To Acquire Purchase Option	1,250,000
Real Estate Investments During The Period	$ 15,096,000
Lessor, Operating Lease, Term of Contract	14 years
Number of Units in Real Estate Property \| beds_or_units	126
Initial lease rate	8.35%
Acadia Healthcare [Member]
Real Estate Properties, Number Acquired \| properties	1
Operating Leases, Income Statement, Lease Revenue	$ 2,537,000	2,392,000
Discovery Senior Living [Member]
Real Estate Properties, Number Acquired \| properties	1
Number of Units in Real Estate Property \| beds_or_units	200
The Lasalle Group [Member]
Real Estate Properties, Number Acquired \| properties	5
Real Estate Investments During The Period	$ 61,865,000
Asset Purchase Transaction Costs	$ 65,000
Lessor, Operating Lease, Term of Contract	15 years
Number of Units in Real Estate Property \| beds_or_units	223
Lease Escalator Rate, From Lease Year 1 to Lease Year 3	3.50%
Lease Escalator Rate, After Lease Year 3	2.50%
Initial lease rate	7.00%
Lease Incentive Commitment Assessed As Not Probable	$ 5,000,000
Payments to acquire real estate, seller earnout, contingent, not probable	$ 2,500,000
Navion Senior Solutions [Member]
Number of Acquisition Transactions	2
Real Estate Properties, Number Acquired \| properties	3
Real Estate Investments During The Period	$ 16,100,000
Number of Units in Real Estate Property \| beds_or_units	118
Prestige Senior Living [Member]
Real Estate Properties, Number Acquired \| properties	1
Payments to Acquire Real Estate	$ 26,200,000
Real Estate Investments During The Period	26,200,000
Asset Purchase Transaction Costs	$ 112,000
Lessor, Operating Lease, Term of Contract	12 years
Number of Units in Real Estate Property \| beds_or_units	102
Initial lease rate	7.00%
Lease Incentive Commitment Assessed As Not Probable	$ 1,000,000
Lease Escalator Rate Lease Year 2 to Lease Year 4	3.50%
Lease Escalator Rate after Lease Year 4	2.50%
Senior Living Communities [Member]
Real Estate Properties, Number Acquired \| properties	1
Number of Real Estate Properties \| properties	9
Lessor, Operating Lease, Term of Contract	15 years
Operating Leases, Income Statement, Lease Revenue	$ 45,735,000	$ 40,332,000	$ 39,422,000
Percentage of Continuing Revenue	16.00%	16.00%	17.00%
Straight Line Rent	$ 6,984,000	$ 7,369,000	$ 8,422,000
Number of Units in Real Estate Property	1,970
Number of additional lease renewal options	2
Lessor, Operating Lease, Renewal Term	5 years
Lease Escalator Rate Lease Year 2 to Lease Year 4	4.00%
Lease Escalator Rate after Lease Year 4	3.00%
Bickford Senior Living [Member]
Real Estate Properties, Number Acquired \| properties	1
Number of Real Estate Properties \| properties	47
Minimum Annual Lease Income	$ 36,504,000
Operating Leases, Income Statement, Lease Revenue	$ 41,606,000	$ 30,732,000	$ 24,121,000
Percentage of Continuing Revenue	15.00%	12.00%	11.00%
Straight Line Rent	$ 5,102,000	$ 858,000	$ 267,000
Number of Real Estate Properties To Be Constructed \| properties	2
Joint Venture Contributed Properties Ownership Interest Retained				85.00%
Joint Venture Contributed Properties Ownership Interest Surrendered	15.00%
Straight Line Rent Adjustments	$ 5,102,000
Transition Tenant [Member]
Lessor, Operating Lease, Term of Contract	10 years
Purchase Option Amount	$ 21,400,000
Number of Units in Real Estate Property \| beds_or_units	126
Lessor, Operating Lease, Payments to be Received	$ 1,500,000
Lease Escalator Rate Lease Year 2 to Lease Year 4	4.00%
Purchase Option, Amount, Forward Rent, Capitalization Rate	8.50%
Lease Escalator Rate after Lease Year 4	3.00%
Holiday Acquisition Holdings [Member]
Number of Real Estate Properties \| properties	25
Lessor, Operating Lease, Term of Contract	17 years
Operating Leases, Income Statement, Lease Revenue	$ 43,817,000	$ 43,817,000	$ 43,817,000
Percentage of Continuing Revenue	16.00%	18.00%	19.00%
Straight Line Rent	$ 7,397,000	$ 8,965,000	$ 10,466,000
Lease Escalator Rate, After Lease Year 3	3.50%
National Healthcare Corporation [Member]
Number of Real Estate Properties \| properties	42
Number of Master Leases \| Master_Leases	2
Operating Leases, Income Statement, Lease Revenue	$ 37,467,000	$ 37,626,000	$ 36,625,000
Percentage of Continuing Revenue	13.00%	15.00%	16.00%
Lessor Equity Shares Owned, Significant Lessee \| shares	1,630,462
Percentage rent	$ 3,321,000	$ 3,479,000	$ 2,479,000
Default Tenant [Member]
Percentage of Continuing Revenue	3.00%
Deferred Rent Receivables, Net	$ 3,482,000
Bickford RIDEA Properties [Member] \| Bickford Senior Living [Member]
Number of Real Estate Properties \| properties	35
Real Estate Acquisition [Member]
Real Estate Investments During The Period	$ 191,231,000
Real Estate Acquisition [Member] \| Acadia Healthcare [Member]
Land Subject to Ground Leases \| a	10
Real Estate Investments During The Period	$ 4,840,000
Lessor, Operating Lease, Term of Contract	10 years
Initial lease rate	7.00%
Real Estate Acquisition [Member] \| Discovery Senior Living [Member]
Real Estate Investments During The Period	$ 34,600,000
Lessor, Operating Lease, Term of Contract	15 years
Noncash or Part Noncash Acquisition, Debt Assumed	$ 18,311,000
Mortgage Loans on Real Estate, Interest Rate	4.60%
Initial lease rate	7.00%
Capital Improvements Commitment	$ 500,000
Real Estate Acquisition [Member] \| Navion Senior Solutions [Member]
Real Estate Properties, Number Acquired \| properties	1
Real Estate Investments During The Period	$ 8,200,000
Real Estate Acquisition [Member] \| Senior Living Communities [Member]
Real Estate Investments During The Period	6,830,000
Real Estate Acquisition [Member] \| Bickford Senior Living [Member]
Real Estate Investments During The Period	10,400,000
Asset Purchase Transaction Costs	$ 200,000
Lessor, Operating Lease, Term of Contract	14 years
Number of Units in Real Estate Property \| beds_or_units	60
Initial lease rate	7.25%
Capital Improvements Commitment	$ 475,000
Bickford Development Properties [Member] \| Bickford Senior Living [Member]
Free Rent Lease Period, Number of Months	6 months
Number of Real Estate Properties To Be Constructed \| properties	5
Initial lease rate	9.00%
NHC - 1991 Lease [Member] \| National Healthcare Corporation [Member]
Number of Real Estate Properties \| properties	35
Minimum Annual Lease Income	$ 30,750,000
Percentage Rent Rate	0.04
Number of additional lease renewal options \| renewalOptions	2
Lessor, Operating Lease, Renewal Term	5 years
NHC - 2013 Lease [Member] \| National Healthcare Corporation [Member]
Number Of Real Estate Properties Acquired \| properties	7
Minimum Annual Lease Income	$ 3,450,000
Percentage Rent Rate	0.04
Purchase Option Amount	$ 49,000,000
Senior Housing Community [Member]
Number of Real Estate Properties \| properties	136
Skilled Nursing Facility [Member]
Number of Real Estate Properties \| properties	68
Gains (Losses) on Sales of Investment Real Estate	$ 2,805,000
Asset Held For Sale, Agreed Selling Price	$ 24,600,000
Skilled Nursing Facility [Member] \| Ensign Group [Member]
Number of Real Estate Properties \| properties	2
Skilled Nursing Facility [Member] \| National Healthcare Corporation [Member]
Number of Real Estate Properties \| properties	39
Skilled Nursing Facility [Member] \| Health Services Management [Member]
Lessor, Operating Lease, Payments to be Received	$ 7,241,000
Skilled Nursing Facility [Member] \| Subleased Facilities [Member] \| National Healthcare Corporation [Member]
Number of Real Estate Properties \| properties	4
Skilled Nursing Facility [Member] \| Lease Maturity Extension [Member]
Number of Real Estate Properties \| properties	6
Lessor, Operating Lease, Term of Contract	12 years
Lessor, Operating Lease, Payments to be Received	$ 9,800,000
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
Vacant Land [Member]
Gains (Losses) on Sales of Investment Real Estate	$ 123,000
Transition Tenant [Member]
Minimum Annual Lease Income		$ 2,237,000
February 2017 Acquisition [Member] \| Navion Senior Solutions [Member]
Real Estate Properties, Number Acquired \| properties	2
February 2017 Acquisition [Member] \| Ravn Senior Solutions [Member]
Payments to Acquire Real Estate	$ 16,100,000
Asset Purchase Transaction Costs	$ 100,000
Lessor, Operating Lease, Term of Contract	15 years
Number of Units in Real Estate Property \| beds_or_units	86
Initial lease rate	7.35%
Capital Improvements Commitment	$ 207,000
Lease Incentive Commitment Assessed As Not Probable	1,500,000
Payments to acquire real estate, seller earnout, contingent, not probable	$ 1,000,000
East Lake Mgmt, Acquisition [Member]
Number of Real Estate Properties \| properties	3
Payments to acquire real estate, seller earnout, contingent, not probable	$ 750,000
December 2017 Acquisition [Member] \| Ravn Senior Solutions [Member]
Payments to Acquire Real Estate	7,550,000
Asset Purchase Transaction Costs	$ 100,000
Lessor, Operating Lease, Term of Contract	15 years
Number of Units in Real Estate Property \| beds_or_units	32
Initial lease rate	7.15%
Capital Improvements Commitment	$ 650,000
Lease Incentive Commitment Assessed As Not Probable	3,350,000
Grangeville, ID [Member]
Gains (Losses) on Sales of Investment Real Estate	1,654,000
Asset Held For Sale, Agreed Selling Price	3,000,000
Real Estate Held-for-sale	$ 1,346,000
September 2027 [Member] \| Bickford Senior Living [Member]
Number of Real Estate Properties \| properties	4
Minimum Annual Lease Income	$ 125,000
Straight Line Rent Adjustments	$ 309,000