STOCK-BASED COMPENSATION - Stock-based compensation expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	$ 17,799	$ 17,430	$ 56,613	$ 46,173
Capitalized amount in compensation costs	553	765	1,866	2,500
Other operating expenses
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	2,331	4,389	8,197	10,158
Research and development expenses
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	4,914	3,835	15,195	8,305
Sales and marketing expenses
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	4,694	4,198	14,227	12,825
General and administrative expenses
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	$ 5,860	$ 5,008	$ 18,994	$ 14,885