FAIR VALUE MEASUREMENT - Fair Value Measurement Inputs - Purchase Option (Details)	Mar. 31, 2024	Dec. 31, 2023
Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Purchase option, measurement input	1.250	1.250
Expected term (years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Purchase option, measurement input	1.9	2.2
Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Purchase option, measurement input	0.046	0.042
Weighted average cost of capital
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Purchase option, measurement input	0.509	0.506