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Cover
Nov. 10, 2025
Cover [Abstract]  
Document Type 8-K
Document Period End Date Nov. 10, 2025
Entity Registrant Name Sonida Senior Living, Inc.
Entity Incorporation, State or Country Code DE
Entity File Number 1-13445
Entity Tax Identification Number 75-2678809
Entity Address, Address Line One 14755 Preston Road
Entity Address, Address Line Two Suite 810
Entity Address, State or Province TX
Entity Address, City or Town Dallas,
Entity Address, Postal Zip Code 75254
City Area Code (972)
Local Phone Number 770-5600
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Title of 12(b) Security Common Stock, par value $0.01 per share
Trading Symbol SNDA
Security Exchange Name NYSE
Entity Central Index Key 0001043000
Amendment Flag false