Business and Property Management Agreements with RMR - Schedule of Business Management and Operating Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Business Management Agreement, Business Management Fees And Incentive Fees
Related Party Transaction [Line Items]
Related party transaction, amount	$ 7,065	$ 5,809	$ 13,767	$ 11,639
Business Management Fees
Related Party Transaction [Line Items]
Related party transaction, amount	5,754	5,809	11,489	11,639
Business Management Agreement, Incentive Fees
Related Party Transaction [Line Items]
Related party transaction, amount	1,311	0	2,278	0
Property Management and Construction Supervision Fees
Related Party Transaction [Line Items]
Related party transaction, amount	3,325	3,231	6,622	6,634
Property Management Fees
Related Party Transaction [Line Items]
Related party transaction, amount	3,238	3,116	6,505	6,446
Construction Supervision Fees
Related Party Transaction [Line Items]
Related party transaction, amount	87	115	117	188
Reimbursed Property Level Operating Expenses
Related Party Transaction [Line Items]
Related party transaction, amount	1,787	1,647	3,407	3,334
Reimbursed Property Level Operating Expenses \| General and Administrative Expense
Related Party Transaction [Line Items]
Related party transaction, amount	51	82	101	164
Reimbursed Property Level Operating Expenses \| Other Cost and Expense, Operating
Related Party Transaction [Line Items]
Related party transaction, amount	$ 1,736	$ 1,565	$ 3,306	$ 3,170