Cover Page - shares	3 Months Ended
	Mar. 31, 2022	Apr. 30, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2022
Document Transition Report	false
Entity File Number	1-13445
Entity Registrant Name	Sonida Senior Living, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	75-2678809
Entity Address, Address Line One	16301 Quorum Drive
Entity Address, Address Line Two	Suite 160A
Entity Address, City or Town	Addison
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75001
City Area Code	972
Local Phone Number	770-5600
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	SNDA
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	No
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		6,755,938
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001043000
Current Fiscal Year End Date	--12-31