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ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES - Valuation Technique And Significant Unobservable Inputs Of Equity Securities (Details) $ in Thousands	Dec. 31, 2024 USD ($) yr	Dec. 31, 2023 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, at fair value	$ 21,640	$ 41,046
Fair Value, Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, at fair value	21,600
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, at fair value	21,640	$ 41,046
Level 3 | Fair Value, Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, at fair value	21,640
tZERO | Level 3 | Fair Value, Recurring | Term to liquidity | Blended market approach - transaction backsolve adjusted for enterprise value changes in guideline public companies, with an option pricing model method and guideline public company method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, at fair value	$ 17,720
Inputs | yr	4
tZERO | Level 3 | Fair Value, Recurring | Volatility | Blended market approach - transaction backsolve adjusted for enterprise value changes in guideline public companies, with an option pricing model method and guideline public company method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Inputs | yr	1.10
tZERO | Level 3 | Fair Value, Recurring | Percentage change in enterprise value for guideline public companies | Blended market approach - transaction backsolve adjusted for enterprise value changes in guideline public companies, with an option pricing model method and guideline public company method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Inputs | yr	(0.824)
SpeedRoute | Level 3 | Fair Value, Recurring | Market approach - latest transactions
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, at fair value	$ 3,920

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

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