Document and Entity Information
Document and Entity Information Document | Nov. 09, 2020 | May 11, 2020 |
Document And Entity Information [Abstract] | ||
Document Type | 8-K | |
Entity Incorporation, State or Country Code | MD | |
Document Period End Date | Nov. 9, 2020 | |
Entity Registrant Name | National Health Investors Inc | |
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 | |
Entity File Number | 001-10822 | |
Entity Tax Identification Number | 62-1470956 | |
Written Communications | false | |
Soliciting Material | false | |
Pre-commencement Tender Offer | false | |
Pre-commencement Issuer Tender Offer | false | |
Title of 12(b) Security | Common Stock, $0.01 par value | |
Trading Symbol | NHI | |
Security Exchange Name | NYSE | |
Entity Emerging Growth Company | false | |
Entity Central Index Key | 0000877860 | |
Amendment Flag | false |