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Business and Property Management Agreements with RMR - Narrative (Details)	1 Months Ended	9 Months Ended	12 Months Ended
	Jan. 31, 2025 USD ($)	Sep. 30, 2025 employee agreement	Dec. 31, 2024 USD ($)
Related Party Transaction [Line Items]
Number of employees \| employee		0
Citibank, N.A. \| Credit Agreement \| The RMR Group LLC
Related Party Transaction [Line Items]
Number of days notice to cure default	30 days
Citibank, N.A. \| Credit Agreement \| Line of Credit \| The RMR Group LLC
Related Party Transaction [Line Items]
Maximum borrowing capacity \| $	$ 100,000,000
Related Party
Related Party Transaction [Line Items]
Number of management service agreements		2
Management service agreement term		3 years
Incentive fee expense \| $			$ 0
Number of joint venture agreements		2
Reit Management And Research L L C \| Related Party
Related Party Transaction [Line Items]
Number of management service agreements		2