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v3.22.4

Investment Activity (Tenant Concentration) (Details) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 USD ($) property bedOrUnitInTheProperty state facility masterLease | Dec. 31, 2021 USD ($) bedOrUnitInTheProperty | Dec. 31, 2020 USD ($) | Sep. 01, 2022 property | Aug. 31, 2022 USD ($)
Real Estate [Line Items] |  |  |  |  |
Number of states in which entity operates | state | 32 |  |  |  |
Percentage of continuing revenue | 13.00% | 0.00% | 0.00% |  |
Properties | 160 |  |  |  |
Straight-line rent income, net of write-offs | $ | $ (16,681) | $ 14,603 | $ 20,411 |  |
Lessor, operating lease, renewal term | 5 years |  |  |  |
Independent Living Facilities |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |
Number of states in which entity operates | state | 8 |  |  |  |
Skilled Nursing Facilities |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |
Properties | facility | 65 |  |  |  |
Senior Living Communities |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |
Percentage of continuing revenue | 18.00% | 17.00% | 15.00% |  |
Properties | 10 |  |  |  |
Number of units in real estate property | bedOrUnitInTheProperty | 2,200 |  |  |  |
Straight-line rent income, net of write-offs | $ | $ (400) | $ (2,500) | $ (4,300) |  |
National HealthCare Corporation |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |
Percentage of continuing revenue | 13.00% | 12.00% | 11.00% |  |
Number of master leases | masterLease | 2 |  |  |  |
Lessor, operating lease, renewal term | 5 years |  |  |  |
Lessor, operating lease, annual base rent | $ | $ 34,300 |  |  |  | $ 30,800
National HealthCare Corporation | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |
Number of real estate properties sold |  |  |  | 7 |
National HealthCare Corporation | NHC - 1991 Lease |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |
Percentage rent rate | 4.00% |  |  |  |
National HealthCare Corporation | Independent Living Facilities |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |
Properties | 3 |  |  |  |
National HealthCare Corporation | Skilled Nursing Facilities |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |
Properties | facility | 32 |  |  |  |
National HealthCare Corporation | Skilled Nursing Facilities | Subleased Facilities |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |
Properties | 4 |  |  |  |
SOUTH CAROLINA |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |
Percentage of continuing revenue | 12.10% | 11.60% |  |  |
TEXAS |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |
Percentage of continuing revenue | 10.70% | 10.30% |  |  |
Revenue as % of Total, Exceeds 10% |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |
Number of states in which entity operates | bedOrUnitInTheProperty | 2 | 2 |  |  |

X
- Definition Lessor, Operating Lease, Annual Base Rent + References No definition available. + Details
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Namespace Prefix: | nhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Number Of Real Estate Properties Sold + References No definition available. + Details
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Namespace Prefix: | nhi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Number of Master Leases + References No definition available. + Details
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Namespace Prefix: | nhi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- 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: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- 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
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Period Type: | duration

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- 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=124258985&loc=SL77919359-209981 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | instant

X
- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
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Data Type: | xbrli:integerItemType
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- Definition The number of units in a real estate property owned as of the balance sheet date. + References No definition available. + Details
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Data Type: | xbrli:integerItemType
Balance Type: | na
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
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- 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=123570139&loc=d3e3602-108585 + Details
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Balance Type: | credit
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- Details
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