Organization and Nature of the Business	6 Months Ended
Jun. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Nature of the Business	Organization and Nature 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”) specializing in sale-leaseback, joint venture, and mortgage and mezzanine financing of need-driven and discretionary senior housing and medical facility investments. We operate through two reportable segments: Real Estate Investments and Senior Housing Operating Portfolio (“SHOP”). Our Real Estate Investments segment consists of real estate investments, tenant leases, and mortgage and other notes receivable related to independent living facilities (“ILFs”), assisted living facilities (“ALFs”), entrance-fee communities (“EFCs”), senior living campuses (“SLCs”), skilled nursing facilities (“SNFs”) and hospitals (“HOSPs”). As of June 30, 2025, we had gross real estate investments of $2.7 billion in 181 real estate properties located in 32 states and leased pursuant primarily to triple-net leases to 31 tenants, consisting of 115 senior housing communities, 65 SNFs and one HOSP. Our portfolio of ten mortgages along with other notes receivable totaled $270.4 million, excluding an allowance for expected credit losses of $17.5 million, as of June 30, 2025. Our SHOP segment is comprised of two ventures that own the operations of ILFs. For this segment, as of June 30, 2025, we had gross real estate investments of $360.8 million in 15 ILFs located in eight states with a combined total of 1,732 units that are operated on behalf of us by third-party property managers pursuant to the terms of separate management agreements. The third-party property managers, or related parties of the property managers, own equity interests in the respective ventures. Units, beds and property count disclosures in these notes to the condensed consolidated financial statements are outside the scope of our independent registered accounting firm’s review.

Organization and Nature of the Business

6 Months Ended

Jun. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

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”) specializing in sale-leaseback, joint venture, and mortgage and mezzanine financing of need-driven and discretionary senior housing and medical facility investments. We operate through two reportable segments: Real Estate Investments and Senior Housing Operating Portfolio (“SHOP”).

Our Real Estate Investments segment consists of real estate investments, tenant leases, and mortgage and other notes receivable related to independent living facilities (“ILFs”), assisted living facilities (“ALFs”), entrance-fee communities (“EFCs”), senior living campuses (“SLCs”), skilled nursing facilities (“SNFs”) and hospitals (“HOSPs”). As of June 30, 2025, we had gross real estate investments of $2.7 billion in 181 real estate properties located in 32 states and leased pursuant primarily to triple-net leases to 31 tenants, consisting of 115 senior housing communities, 65 SNFs and one HOSP. Our portfolio of ten mortgages along with other notes receivable totaled $270.4 million, excluding an allowance for expected credit losses of $17.5 million, as of June 30, 2025.

Our SHOP segment is comprised of two ventures that own the operations of ILFs. For this segment, as of June 30, 2025, we had gross real estate investments of $360.8 million in 15 ILFs located in eight states with a combined total of 1,732 units that are operated on behalf of us by third-party property managers pursuant to the terms of separate management agreements. The third-party property managers, or related parties of the property managers, own equity interests in the respective ventures. Units, beds and property count disclosures in these notes to the condensed consolidated financial statements are outside the scope of our independent registered accounting firm’s review.