Limits On Common Stock Ownership Limits On Common Stock Ownership	12 Months Ended
Dec. 31, 2018
Limits On Common Stock Ownership [Abstract]
Limits On Common Stock Ownership [Text Block]	LIMITS ON COMMON STOCK OWNERSHIP The Company’s charter contains certain provisions which are designed to ensure that the Company’s status as a REIT is protected for federal income tax purposes. One of the provisions ensures that any transfer (of shares) which would cause NHI to be beneficially owned by fewer than 100 persons or would cause NHI to be “closely-held” under the Internal Revenue Code would be void which, subject to certain exceptions, result in no stockholder being allowed to own, either directly or indirectly pursuant to certain tax attribution rules, more than 9.9% of the Company’s common stock with the exception of prior agreements in 1991 which were confirmed in writing in 2008 with the Company’s founders Dr. Carl E. Adams and Jennie Mae Adams and their lineal descendants. Based on these agreement, the ownership limit for all other stockholders is approximately 7.5%. If a stockholder’s stock ownership exceeds the limit, then such shares over the limit become Excess Stock within the meaning in the Company’s charter whose rights to vote and receive dividends in certain situations. Our charter gives our Board of Directors broad powers to prohibit and rescind any attempted transfer in violation of the ownership limits. In addition, W. Andrew Adams’ Excess Holder Agreement also provides that he will not own shares of stock in any tenant of the Company if such ownership would cause the Company to constructively own more than a 9.9% interest in such tenant. The purpose of these provisions is to protect the Company’s status as a REIT for tax purposes.

LIMITS ON COMMON STOCK OWNERSHIP

The Company’s charter contains certain provisions which are designed to ensure that the Company’s status as a REIT is protected for federal income tax purposes. One of the provisions ensures that any transfer (of shares) which would cause NHI to be beneficially owned by fewer than 100 persons or would cause NHI to be “closely-held” under the Internal Revenue Code would be void which, subject to certain exceptions, result in no stockholder being allowed to own, either directly or indirectly pursuant to certain tax attribution rules, more than 9.9% of the Company’s common stock with the exception of prior agreements in 1991 which were confirmed in writing in 2008 with the Company’s founders Dr. Carl E. Adams and Jennie Mae Adams and their lineal descendants. Based on these agreement, the ownership limit for all other stockholders is approximately 7.5%. If a stockholder’s stock ownership exceeds the limit, then such shares over the limit become Excess Stock within the meaning in the Company’s charter whose rights to vote and receive dividends in certain situations. Our charter gives our Board of Directors broad powers to prohibit and rescind any attempted transfer in violation of the ownership limits. In addition, W. Andrew Adams’ Excess Holder Agreement also provides that he will not own shares of stock in any tenant of the Company if such ownership would cause the Company to constructively own more than a 9.9% interest in such tenant. The purpose of these provisions is to protect the Company’s status as a REIT for tax purposes.