REVENUE RECOGNITION - Contract Liabilities (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Dec. 31, 2024
Revenue from Contract with Customer [Abstract]
Contract liabilities, current	[1]	$ (3,616)	$ (6,401)
Contract liabilities, non-current	[1]	(12,430)	(6,360)
Total		$ (16,046)	$ (12,761)

[1] Includes related party amounts of $1,011 and $400 (deferred revenue, current) and $8,545 and $3,497 (deferred revenue, non-current) as of September 30, 2025, and December 31, 2024, respectively (see Note 14).