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

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- Definition

Represents the percentage of the gross carrying value of real estate.

+ References

No definition available.

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- Definition

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

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No definition available.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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- Definition

Balance held at close of period in number of shares.

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- Definition

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

+ References

No definition available.

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

+ References

No definition available.

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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 (Details) $ in Thousands	3 Months Ended
Related Person Transactions (Details) $ in Thousands	Mar. 31, 2019 USD ($) agreement hotel shares	Mar. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)
Related Party Transaction [Line Items]
Earnings (losses) recognized related to equity investments \| $	$ 404	$ 44
Common Class A \| RMR Inc
Related Party Transaction [Line Items]
Shares included in investment securities (in shares) \| shares	2,503,777
Travel Centers of America LLC \| RMR LLC
Related Party Transaction [Line Items]
Shares included in investment securities (in shares) \| shares	1,492,691
Noncontrolling interest, ownership percentage	3.70%
Travel Centers of America LLC
Related Party Transaction [Line Items]
Lessee as percentage of gross carrying value of real estate	31.00%
Shares included in investment securities (in shares) \| shares	3,420,000
Percentage of total shares outstanding	8.50%
Sonesta Int'l Hotels Corp
Related Party Transaction [Line Items]
Number of properties owned \| hotel	51
AIC
Related Party Transaction [Line Items]
Carrying value of investments \| $	$ 9,109		$ 8,639
Earnings (losses) recognized related to equity investments \| $	$ 404	$ 44
Amended and restate business management agreement \| RMR LLC
Related Party Transaction [Line Items]
Number of management service agreements \| agreement	2