REVENUE RECOGNITION - Schedule of Revenue from External Customers by Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Revenue, Major Customer [Line Items]
Total revenue	$ 44,244	$ 37,254
United States
Revenue, Major Customer [Line Items]
Total revenue	32,467	25,618
United Kingdom
Revenue, Major Customer [Line Items]
Total revenue	6,015	5,184
All other countries
Revenue, Major Customer [Line Items]
Total revenue	$ 5,762	$ 6,452