GOODWILL AND INTANGIBLE ASSETS WITH DEFINITE LIVES - Intangible Assets with Definite Lives (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Intangible assets with definite lives
Gross Carrying Amount	$ 50,260	$ 50,260
Accumulated Amortization	(47,631)	(44,792)
Total	$ 2,629	$ 5,468
Weighted-Average Useful Life (Years)	3 years 7 months 6 days	3 years 7 months 6 days
Developed technology
Intangible assets with definite lives
Gross Carrying Amount	$ 29,730	$ 29,730
Accumulated Amortization	(27,720)	(25,630)
Total	$ 2,010	$ 4,100
Weighted-Average Useful Life (Years)	3 years 8 months 12 days	3 years 8 months 12 days
Customer relationships
Intangible assets with definite lives
Gross Carrying Amount	$ 17,530	$ 17,530
Accumulated Amortization	(16,911)	(16,162)
Total	$ 619	$ 1,368
Weighted-Average Useful Life (Years)	3 years 10 months 24 days	3 years 10 months 24 days
Trade names
Intangible assets with definite lives
Gross Carrying Amount	$ 3,000	$ 3,000
Accumulated Amortization	(3,000)	(3,000)
Total	$ 0	$ 0
Weighted-Average Useful Life (Years)	1 year 8 months 12 days	1 year 8 months 12 days