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INVESTMENTS AND FAIR VALUE MEASUREMENTS - Quantitative Information about Level 3 Fair Value Measurements (Details) $ in Thousands	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
PropTech convertible trading debt securities	$ 1,254	$ 1,162
Fair value of derivative embedded within convertible debt	30,253	0
Senior Secured Convertible Notes Due July 2029 | Convertible Debt
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of derivative embedded within convertible debt	30,253	0
Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
PropTech convertible trading debt securities	1,254
Significant Unobservable Inputs (Level 3) | Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
PropTech convertible trading debt securities	$ 1,254
Significant Unobservable Inputs (Level 3) | Recurring | Volatility | Valuation Technique Binomial Lattice Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative Liability, Measurement Input	0.50
Significant Unobservable Inputs (Level 3) | Recurring | Measurement Input Stock Dividend | Valuation Technique Binomial Lattice Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative Liability, Measurement Input	0
Significant Unobservable Inputs (Level 3) | Recurring | Measurement Input Cash Dividend | Valuation Technique Binomial Lattice Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative Liability, Measurement Input	0
Significant Unobservable Inputs (Level 3) | Recurring | Stock price | Valuation Technique Binomial Lattice Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative Liability, Measurement Input	1.67
Significant Unobservable Inputs (Level 3) | Recurring | Risk-free rate | Valuation Technique Binomial Lattice Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative Liability, Measurement Input	0.0436
Significant Unobservable Inputs (Level 3) | Recurring | Measurement Input, Entity Credit Risk | Valuation Technique Binomial Lattice Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative Liability, Measurement Input	0.0806
Significant Unobservable Inputs (Level 3) | Recurring | PropTech convertible trading debt securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
PropTech convertible trading debt securities	$ 1,254	$ 1,162
Significant Unobservable Inputs (Level 3) | Recurring | PropTech convertible trading debt securities | Interest rate | Discounted cash flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Convertible trading debt securities input	0.05	0.05
Significant Unobservable Inputs (Level 3) | Recurring | PropTech convertible trading debt securities | Volatility | Discounted cash flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Convertible trading debt securities input	0.4682	0.4025
Significant Unobservable Inputs (Level 3) | Recurring | PropTech convertible trading debt securities | Discount rate | Discounted cash flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Convertible trading debt securities input	0.2565	0.3037

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