WARRANTS - Fair Value Assumptions (Details)	Mar. 31, 2026 $ / shares year
Stock price \| Going concern scenario \| Series A-1 Redeemable Convertible Preferred Stock
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	8.73
Stock price \| Going concern scenario \| Series E-1 Redeemable Convertible Preferred Stock
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	8.17
Stock price \| Going concern scenario \| Common stock
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	0
Stock price \| IPO scenario \| Series A-1 Redeemable Convertible Preferred Stock
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	0
Stock price \| IPO scenario \| Series E-1 Redeemable Convertible Preferred Stock
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	0
Stock price \| IPO scenario \| Common stock
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	14.00
Expected volatility \| Going concern scenario
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	0.750
Expected volatility \| IPO scenario
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	0.750
Expected term (in years) \| Going concern scenario
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input \| year	3.00
Expected term (in years) \| IPO scenario
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input \| year	0.12
Risk-free interest rate \| Going concern scenario
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	0.038
Risk-free interest rate \| IPO scenario
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	0.037
Expected dividend yield \| Going concern scenario
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	0.000
Expected dividend yield \| IPO scenario
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	0.000