EQUITY INVESTMENTS AND BUSINESS COMBINATIONS - Schedule of Equity Method Investments (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2023
Increase (Decrease) In Equity Method Investments [Roll Forward]
Beginning balance			$ 10,766
Investments in equity method investees			992
Equity interests (loss) income			(5,404)
Ending balance			6,354
Spiegel Venture
Increase (Decrease) In Equity Method Investments [Roll Forward]
Beginning balance			2,899
Investments in equity method investees			992
Equity interests (loss) income			(2,155)
Ending balance			1,736
Impairment of equity method investment		$ 2,000	2,000
Nebula
Increase (Decrease) In Equity Method Investments [Roll Forward]
Beginning balance			7,867
Investments in equity method investees			0
Equity interests (loss) income			(3,249)
Ending balance			4,618
Impairment of equity method investment	$ 2,300		$ 2,300