Description of the Business	6 Months Ended
Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of the Business	Description of the Business National Health Investors, Inc. (“NHI”, the “Company”, “we”, “us” or “our”), established in 1991 as a Maryland corporation, is a self-managed real estate investment trust (“REIT”). We own, lease, operate and finance the development of high-quality real estate properties throughout the United States, focusing on senior housing communities and medical facilities. We operate through two reportable segments, Real Estate Investments and Senior Housing Operating Portfolio (“SHOP”). Our investments in senior housing communities (“SHO”) include independent living facilities (“ILF”), assisted living facilities (“ALF”), entrance fee communities (“EFC”) and senior living campuses (“SLC”). Our investments in medical facilities include skilled nursing facilities (“SNF”) and hospitals (“HOSP”). As of June 30, 2026, our Real Estate Investments segment included gross real estate investments of $2.4 billion in 137 owned properties, located in 29 states and leased to 26 tenants primarily under triple-net leases. These investments were comprised of 88 ALFs, 12 EFCs, six SLCs, 30 SNFs and one HOSP. Our Real Estate Investments segment also included $224.5 million in principal amounts of mortgage and other notes receivable as of June 30, 2026. Additionally, we had 37 owned properties with an aggregate gross carrying value of $161.5 million that were classified as assets held for sale as of June 30, 2026, including 35 properties leased to National HealthCare Corporation (“NHC”) which were sold to an affiliate of NHC on July 1, 2026. The remaining two properties were also sold in July 2026. Our properties classified as assets held for sale included 34 SNFs and three ILFs. As of June 30, 2026, our SHOP segment consisted of gross real estate investments of $854.8 million in 42 properties, located in 16 states and comprised of 22 ILFs, 13 SLCs and seven ALFs with a combined total of 4,001 units. We outsource the operations at these properties to third-party managers and pay a management fee to these third parties for their services. As of June 30, 2026, 16 of these properties were held in consolidated partnerships in which the noncontrolling common equity interest holders are affiliates of the respective managers operating these properties on our behalf. References in these condensed consolidated financial statements related to property and unit counts are outside the scope of our independent registered accounting firm’s review.

National Health Investors, Inc. (“NHI”, the “Company”, “we”, “us” or “our”), established in 1991 as a Maryland corporation, is a self-managed real estate investment trust (“REIT”). We own, lease, operate and finance the development of high-quality real estate properties throughout the United States, focusing on senior housing communities and medical facilities. We operate through two reportable segments, Real Estate Investments and Senior Housing Operating Portfolio (“SHOP”). Our investments in senior housing communities (“SHO”) include independent living facilities (“ILF”), assisted living facilities (“ALF”), entrance fee communities (“EFC”) and senior living campuses (“SLC”). Our investments in medical facilities include skilled nursing facilities (“SNF”) and hospitals (“HOSP”).

As of June 30, 2026, our Real Estate Investments segment included gross real estate investments of $2.4 billion in 137 owned properties, located in 29 states and leased to 26 tenants primarily under triple-net leases. These investments were comprised of 88 ALFs, 12 EFCs, six SLCs, 30 SNFs and one HOSP. Our Real Estate Investments segment also included $224.5 million in principal amounts of mortgage and other notes receivable as of June 30, 2026. Additionally, we had 37 owned properties with an aggregate gross carrying value of $161.5 million that were classified as assets held for sale as of June 30, 2026, including 35 properties leased to National HealthCare Corporation (“NHC”) which were sold to an affiliate of NHC on July 1, 2026. The remaining two properties were also sold in July 2026. Our properties classified as assets held for sale included 34 SNFs and three ILFs.

As of June 30, 2026, our SHOP segment consisted of gross real estate investments of $854.8 million in 42 properties, located in 16 states and comprised of 22 ILFs, 13 SLCs and seven ALFs with a combined total of 4,001 units. We outsource the operations at these properties to third-party managers and pay a management fee to these third parties for their services. As of June 30, 2026, 16 of these properties were held in consolidated partnerships in which the noncontrolling common equity interest holders are affiliates of the respective managers operating these properties on our behalf.

References in these condensed consolidated financial statements related to property and unit counts are outside the scope of our independent registered accounting firm’s review.