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Investment Activity (Schedule of Assets Held for Sale and Long-Lived Assets) (Details) $ in Thousands	Sep. 30, 2024 USD ($) property	Dec. 31, 2023 USD ($) property
Real Estate [Line Items]
Number of facilities	2
Disposal Group, Held-for-sale, Not Discontinued Operations | Real Estate Investments
Real Estate [Line Items]
Number of facilities	2	1
Real estate, net | $	$ 5,669	$ 5,004

X

- Definition

Number Of Real Estate Properties, Classified As Held For Sale

+ References

No definition available.

+ Details

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Namespace Prefix:	nhi_
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Balance Type:	na
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X

- Definition

Amount of assets held-for-sale that are not part of a disposal group.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 15
-Paragraph 4
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482309/360-10-15-4

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 976
-SubTopic 310
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477332/976-310-50-1

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- Details

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Balance Type:
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- Details

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