FAIR VALUE MEASUREMENTS - Summary of quantitative information regarding level 3 fair value measurements (Details) - Level 3	Sep. 30, 2025 Y $ / shares	May 27, 2025 $ / shares Y	Dec. 31, 2024 $ / shares Y
Trading stock price
FAIR VALUE MEASUREMENTS
Measurement input	12.11		11.66
Measurement input	12.11	11.93	11.66
Exercise price
FAIR VALUE MEASUREMENTS
Measurement input	11.5	11.5	11.5
Public warrants price
FAIR VALUE MEASUREMENTS
Measurement input	0.12		0.08
Weighted term (in years)
FAIR VALUE MEASUREMENTS
Measurement input | Y	1.55		1.17
Expected term (in years)
FAIR VALUE MEASUREMENTS
Measurement input | Y	0.69	0.68	0.51
Expected term of warrant conversion (in years)
FAIR VALUE MEASUREMENTS
Measurement input | Y	5.69	5.68	5.51
Risk-free rate
FAIR VALUE MEASUREMENTS
Measurement input	0.0364		0.0418
Measurement input			0.0424
Risk-free rate | Minimum
FAIR VALUE MEASUREMENTS
Measurement input	0.0374	0.0404
Risk-free rate | Maximum
FAIR VALUE MEASUREMENTS
Measurement input	0.0377	0.0427
Probability of completing business combination
FAIR VALUE MEASUREMENTS
Measurement input	0.75		0.75