Represents the number of shares held as a percentage of the total shares outstanding at the end of the period.

No definition available.

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- Definition

Represents the service agreements entered into by the entity for availing services from other entities.

+ References

No definition available.

+ Details

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- Definition

Number of shares of investment owned.

+ References

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Balance Type:	na
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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
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- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

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Balance Type:	na
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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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- Details

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Related Person Transactions (Details)	Sep. 30, 2023 hotel shares	Dec. 31, 2022
Hotels
Related Party Transaction [Line Items]
Number of properties owned	221
RMR LLC
Related Party Transaction [Line Items]
Percentage of total shares outstanding (in percent)	4.40%
Travel Centers of America \| RMR LLC
Related Party Transaction [Line Items]
Number of common shares owned (in shares) \| shares	661,505
Sonesta Int'l Hotels Corp
Related Party Transaction [Line Items]
Noncontrolling interest, ownership percentage (in percent)	34.00%	34.00%
RMR LLC \| Amended And Restate Business Management Agreement
Related Party Transaction [Line Items]
Number of management service agreements	2
Sonesta Int'l Hotels Corp \| Related Party \| Hotels
Related Party Transaction [Line Items]
Number of properties owned	195