Debt - 2024 & 2025 Community Mortgage Loans (Details) $ in Thousands						1 Months Ended				12 Months Ended
	Dec. 29, 2025 USD ($)	Aug. 27, 2025 USD ($)	May 31, 2025 USD ($) property extensionOption	Dec. 01, 2024 USD ($)	Feb. 02, 2024 USD ($)	Dec. 31, 2024 USD ($)	May 31, 2024 USD ($)	Apr. 30, 2024 USD ($)	Mar. 31, 2022	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Mar. 01, 2022 USD ($)
Debt Instrument [Line Items]
Purchase of interest rate cap										$ 129	$ 3,312
Notional amount						$ 185,145				194,190	185,145
Tarpon Springs, Florida Senior Living Community
Debt Instrument [Line Items]
Number of assets acquired \| property			1
Interest Rate Cap
Debt Instrument [Line Items]
Derivative, basis spread on variable rate	4.50%	5.50%		3.00%	2.25%		6.00%	4.00%				4.00%
Purchase of interest rate cap	$ 600	$ 100		$ 1,400	$ 600		$ 200	$ 1,100
Notional amount	$ 262,500	$ 122,000		$ 113,000	$ 24,800	185,145	$ 9,400	$ 49,200		$ 194,190	185,145	$ 50,300
Derivative term	36 months	36 months		12 months			24 months	24 months	24 months
Mortgage Debt
Debt Instrument [Line Items]
Note principal amount							$ 9,400
Senior Mortgage Debt \| Mortgage Debt
Debt Instrument [Line Items]
Note principal amount						$ 18,300					$ 18,300
Debt instrument, term						84 months					84 months
Interest waiver term						24 months					24 months
Interest rate						3.00%					3.00%
Macedonia New Loan
Debt Instrument [Line Items]
Debt instrument, term							60 months
Debt instrument, scheduled principal payment waive period							36 months
Macedonia New Loan \| Mortgage Debt
Debt Instrument [Line Items]
Note principal amount							$ 9,400
Derivative, basis spread on variable rate							2.00%
2025 Mortgage Loan \| Mortgage Debt
Debt Instrument [Line Items]
Note principal amount			$ 9,000
Debt instrument, term			36 months
Debt instrument, number of extension option \| extensionOption			2
Debt instrument, extension period			12 months
2025 Mortgage Loan \| Mortgage Debt \| Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.00%
2025 Mortgage Loan \| Mortgage Debt \| Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			3.00%

SONIDA SENIOR LIVING, INC. 10-K