Business and Property Management Agreements with RMR - Schedule of Business Management and Operating Expenses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Business Management Agreement, Business Management Fees And Incentive Fees
Related Party Transaction [Line Items]
Related party transaction, amount	$ 7,359	$ 6,702
Business Management Fees
Related Party Transaction [Line Items]
Related party transaction, amount	5,792	5,735
Business Management Agreement, Incentive Fees
Related Party Transaction [Line Items]
Related party transaction, amount	1,567	967
Property Management and Construction Supervision Fees
Related Party Transaction [Line Items]
Related party transaction, amount	3,430	3,297
Property Management Fees
Related Party Transaction [Line Items]
Related party transaction, amount	3,349	3,267
Construction Supervision Fees
Related Party Transaction [Line Items]
Related party transaction, amount	81	30
Reimbursed Property Level Operating Expenses
Related Party Transaction [Line Items]
Related party transaction, amount	1,578	1,620
Reimbursed Property Level Operating Expenses \| General and Administrative Expense
Related Party Transaction [Line Items]
Related party transaction, amount	44	50
Reimbursed Property Level Operating Expenses \| Other Cost and Expense, Operating
Related Party Transaction [Line Items]
Related party transaction, amount	$ 1,534	$ 1,570