Equity Securities, FV-NI, Holding Period

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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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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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.

+ References

No definition available.

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- Definition

Balance held at close of period in number of shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=99383244&loc=d3e12121-115841

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-Section S99
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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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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- Definition

Amount of unrealized and realized gain (loss) on investment in marketable security, including other-than-temporary impairment (OTTI).

+ References

No definition available.

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Fair Value of Assets and Liabilities - Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 23, 2021	Mar. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Gains and losses on equity securities, net	$ (42,232)	$ 34,106	$ (41,898)
ALR
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investment in common shares (in shares)	10,691,658
Joint Venture \| Seaport Innovation LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Equity method investment ownership percentage	20.00%			20.00%	55.00%
Holding period	10 years
Joint Venture \| Seaport Innovation LLC \| Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input	0.0558
Joint Venture \| Seaport Innovation LLC \| Market Capitalization Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input	0.0525
Recurring \| Level 1 \| Carrying Amount \| ALR
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments	$ 31,540	73,772
Investment in common shares (in shares)	10,691,658
Gains and losses on equity securities, net		34,106
Recurring \| Level 1 \| Estimated Fair Value \| ALR
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments	$ 31,540	73,772
Recurring \| Level 3 \| Carrying Amount \| Joint Venture
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments	215,127	0
Recurring \| Level 3 \| Estimated Fair Value \| Joint Venture
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments	$ 215,127	$ 0