SEGMENT AND GEOGRAPHIC INFORMATION - Schedule of Segment Information (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($)	Dec. 31, 2024 USD ($) segment	Dec. 31, 2023 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment		1
Revenues		$ 51,134	$ 56,889
Advertising and marketing		14,434	17,390
Impairment of content assets	$ 19,000	0	18,970
Total operating expenses		64,467	101,360
Operating loss		(13,333)	(44,471)
Loss before income taxes		(12,809)	(48,390)
Provision for income taxes		132	506
Net loss		(12,941)	(48,896)
Reportable Segment
Segment Reporting Information [Line Items]
Revenues		51,134	56,889
Content amortization		19,130	22,905
Other cost of revenues		6,233	12,648
Advertising and marketing		14,434	17,390
Payroll and related		10,515	12,186
Other general and administrative		14,155	17,261
Impairment of content assets		0	18,970
Total operating expenses		64,467	101,360
Operating loss		(13,333)	(44,471)
Other segment items		524	(3,919)
Loss before income taxes		(12,809)	(48,390)
Provision for income taxes		132	506
Net loss		$ (12,941)	$ (48,896)