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- Definition

Investment Owned Balance Per Shares

+ References

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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-Topic 323
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- Definition

Value of input used to measure investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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- Definition

Amount of realized gain from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amount of unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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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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- Definition

Number of shares of investment owned.

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- Definition

Fair value portion of investments in an entity not consolidated. Includes, but is not limited to, investments in an entity that is affiliated with the reporting entity by means of direct or indirect ownership, an entity in which the reporting entity shares control of the entity with another party or group, an entity which the company has significant influence, but does not have control and subsidiaries that are not required to be consolidated and are accounted for using the equity or cost method.

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Fair Value of Assets and Liabilities - Assets and Liabilities (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Feb. 02, 2023	Dec. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021	Mar. 31, 2017
AlerisLife Inc
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investment owned balance per shares (in dollars per share)	$ 1.31
Corporate Joint Venture \| Seaport Innovation LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Equity method investment ownership percentage		10.00%		20.00%	20.00%	55.00%
Holding period		10 years
Corporate Joint Venture \| Seaport Innovation LLC \| Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input		0.0800
Corporate Joint Venture \| Seaport Innovation LLC \| Market Capitalization Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input		0.0600
Corporate Joint Venture \| The LSMD Fund REIT LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Equity method investment ownership percentage		20.00%
Holding period		10 years
Corporate Joint Venture \| The LSMD Fund REIT LLC \| Discount Rate \| Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input		0.0625
Corporate Joint Venture \| The LSMD Fund REIT LLC \| Discount Rate \| Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input		0.0800
Corporate Joint Venture \| The LSMD Fund REIT LLC \| Market Capitalization Rate \| Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input		0.0475
Corporate Joint Venture \| The LSMD Fund REIT LLC \| Market Capitalization Rate \| Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input		0.0700
Recurring \| Level 1 \| Carrying Amount \| AlerisLife Inc
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments in affiliates, fair value		$ 0	$ 5,880
Investment in common shares (in shares)		10,691,658
Realized gain		$ 8,126
Unrealized loss			25,660
Recurring \| Level 1 \| Estimated Fair Value \| AlerisLife Inc
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments in affiliates, fair value		0	5,880
Recurring \| Joint Venture \| Level 3 \| Carrying Amount \| Seaport Innovation LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments in affiliates, fair value		85,699	104,697
Recurring \| Joint Venture \| Level 3 \| Carrying Amount \| The LSMD Fund REIT LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments in affiliates, fair value		44,217	50,780
Recurring \| Joint Venture \| Level 3 \| Estimated Fair Value \| Seaport Innovation LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments in affiliates, fair value		85,699	104,697
Recurring \| Joint Venture \| Level 3 \| Estimated Fair Value \| The LSMD Fund REIT LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments in affiliates, fair value		$ 44,217	$ 50,780