Represents the number of agreements with RMR LLC to provide management services to the company.

No definition available.

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- Definition

Related Party Transaction, Additional Potential Percentage of Shares Issued Based On Outstanding Common Shares

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No definition available.

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- Definition

Related Party Transaction, Base Manage Fee, Percent Of Gross Revenues

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No definition available.

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- Definition

Related Party Transaction, Brand Promotion Fee, Percent Of Gross Revenues

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No definition available.

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- Definition

Related Party Transaction, Incentive Fee, Percent Of Net Operating Profit

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No definition available.

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- Definition

Related Party Transaction, Loyalty Fee, Percent Of Qualified Room Revenues

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- Definition

Related Party Transaction, Loyalty Fee, Percent Of Room Revenues

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No definition available.

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- Definition

Related Party Transaction, Maximum Priority Return Of Prior Year Priority Return

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- Definition

Related Party Transaction, Number Of Renewal Options

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- Definition

Related Party Transaction, Percentage of Shares Issued Based On Outstanding Common Shares

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No definition available.

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- Definition

Related Party Transaction, Priority Return Increase, Percent Of Capital Expenditures

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No definition available.

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- Definition

Related Party Transaction, Renewal Term

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- Definition

Related Party Transaction, Required Escrow Deposit, Percent Of Gross Revenues

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No definition available.

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- Definition

Area of a real estate property.

+ References

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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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- Definition

Amount of assets classified as other.

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- Definition

The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation.

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- Definition

Amount of transactions with related party during the financial reporting period.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Related Person Transactions - Narrative (Details) ft² in Thousands, $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2026 USD ($) ft² property shares	Jun. 30, 2026 USD ($) ft² property shares	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) ft² agreement property shares	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)	Jun. 17, 2026 USD ($)	Jan. 01, 2025
Related Party Transaction [Line Items]
Common shares of beneficial interest, shares issued (in shares) \| shares	21,953,577	21,953,577		21,953,577
Other operating expenses	$ 4,019
Other assets, net	$ 8,909	$ 8,909		$ 8,909			$ 10,089
RMR LLC
Related Party Transaction [Line Items]
Related party transaction base outstanding common share as percentage				2.00%
Related party transaction base common Shares equal additional percentage				8.00%
RMR LLC \| Related Party
Related Party Transaction [Line Items]
Number of agreements \| agreement				2
Sonesta \| Management Agreement Priority Return
Related Party Transaction [Line Items]
Related party transaction amount				$ 7,500
Sonesta \| Related Party
Related Party Transaction [Line Items]
Rentable square feet (in square feet) \| ft²	246,000	246,000		246,000
Number of renewal options \| property	2	2		2
Renewal term	10 years	10 years		10 years
Related party transaction amount				$ 7,637
Priority return increase percentage of out-of-pocket capital expenditures	8.00%	8.00%		8.00%
Priority return percentage of prior year's annual owner's priority return								102.00%
Incentive fee, percent of net operating profit	20.00%	20.00%		20.00%
Loyalty fee, percent of room revenues	1.00%	1.00%		1.00%
Loyalty fee, percent of qualified room revenues	4.50%	4.50%		4.50%
Other assets, net			$ 11,911		$ 11,911
Sonesta \| Related Party \| Sonesta Management Agreement, Period One
Related Party Transaction [Line Items]
Required escrow deposit, percent of gross revenues						1.00%
Base management fee, percent of gross revenues						1.50%
Brand promotion fee, percent of gross revenues						1.75%
Sonesta \| Related Party \| Sonesta Management Agreement, Period Two
Related Party Transaction [Line Items]
Required escrow deposit, percent of gross revenues	3.00%	3.00%		3.00%
Base management fee, percent of gross revenues	3.00%	3.00%		3.00%
Brand promotion fee, percent of gross revenues	3.50%	3.50%		3.50%
Sonesta \| Related Party \| Sonesta Management Agreement, Period Three
Related Party Transaction [Line Items]
Required escrow deposit, percent of gross revenues	4.00%	4.00%		4.00%
Sonesta \| Related Party \| Management, Brand Promotion and Loyalty Fees
Related Party Transaction [Line Items]
Other operating expenses				$ 407		$ 231
Sonesta \| Related Party \| Working Capital
Related Party Transaction [Line Items]
Other operating expenses						$ 548
Sonesta \| Related Party \| Asset Management Amortization
Related Party Transaction [Line Items]
Other operating expenses		$ 91	$ 108	$ 199	$ 216