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ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES - Valuation Technique And Significant Unobservable Inputs Of Equity Securities (Details) $ in Thousands	Dec. 31, 2023 USD ($) yr	Dec. 31, 2022 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, at fair value	$ 41,046	$ 82,823
Fair Value, Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, at fair value	41,000
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, at fair value	41,046	$ 82,787
Level 3 | Fair Value, Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, at fair value	41,046
tZERO | Level 3 | Fair Value, Recurring | Term to liquidity | Market approach - transaction backsolve with an option pricing model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, at fair value	$ 37,126
Inputs | yr	5
tZERO | Level 3 | Fair Value, Recurring | Volatility | Market approach - transaction backsolve with an option pricing model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Inputs | yr	1.25
tZERO | Level 3 | Fair Value, Recurring | Percentage change in enterprise value for guideline public companies | Market approach - transaction backsolve with an option pricing model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Inputs | yr	0.078
SpeedRoute | Level 3 | Fair Value, Recurring | Market approach - recent transactions
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, at fair value	$ 3,920

X

- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482736/825-10-45-1A

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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
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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