BALANCE SHEET COMPONENTS - Narrative (Details)	3 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Balance Sheet Components [Line Items]
Restricted cash		$ 125,000	$ 500,000
Realized gains (losses)		0	0
Interest receivable		300,000
Allowance for credit losses		0
Unamortized cost of content assets, total		10,200,000
Unamortized cost of content assets, current		5,600,000
Unamortized cost of content assets to be released in two years		2,900,000
Unamortized cost of the content assets to be released in three years		800,000
Unamortized cost of produced content, total		17,700,000
Unamortized cost of produced content, current		6,800,000
Unamortized cost of produced content to be amortized in two years		5,700,000
Unamortized cost of produced content to be amortized in three years		3,400,000
Impairment of content assets	$ 19,000,000	0	18,970,000
Leasehold improvements
Balance Sheet Components [Line Items]
Depreciation expense		$ 300,000	$ 400,000
Measurement Input, Discount Rate
Balance Sheet Components [Line Items]
Content assets, fair value inputs		0.140
Minimum | Measurement Input, EBITDA Multiple
Balance Sheet Components [Line Items]
Content assets, fair value inputs		0.500
Maximum | Measurement Input, EBITDA Multiple
Balance Sheet Components [Line Items]
Content assets, fair value inputs		0.680