XML 15 R1.htm IDEA: XBRL DOCUMENT v3.24.0.1
Cover Page - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Feb. 15, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-10822    
Entity Registrant Name National Health Investors, Inc.    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 62-1470956    
Entity Address, Address Line One 222 Robert Rose Drive    
Entity Address, City or Town Murfreesboro    
Entity Address, State or Province TN    
Entity Address, Postal Zip Code 37129    
City Area Code (615)    
Local Phone Number 890-9100    
Title of 12(b) Security Common Stock, $0.01 par value    
Trading Symbol NHI    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float (in shares)     $ 2,165,587
Entity Common Stock, Shares Outstanding (in shares)   43,409,841  
Documents Incorporated by Reference
Portions of the registrant’s definitive proxy statement for its 2024 annual meeting of stockholders are incorporated by reference into Part III, Items 10, 11, 12, 13, and 14 of this Annual Report on Form 10-K.
    
Amendment Flag false    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Entity Central Index Key 0000877860