RELATED PARTY TRANSACTIONS - EV Purchase Agreement (Narrative) (Details) $ in Thousands, ر.س in Millions	1 Months Ended	3 Months Ended
	Aug. 31, 2023 vehicle	Mar. 31, 2024 USD ($)	Mar. 31, 2024 SAR (ر.س)	Mar. 31, 2023 USD ($)	Mar. 31, 2024 SAR (ر.س)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 SAR (ر.س)
Related Party Transaction [Line Items]
Revenues		$ 172,740		$ 149,432
Accounts receivable, net		126,930				$ 51,822
Related Party
Related Party Transaction [Line Items]
Revenues		51,366		$ 0
Accounts receivable, net		84,884				35,526
Electric Vehicle Purchase Agreement | Related Party | EV Purchase Agreement | Government of Saudi Arabia
Related Party Transaction [Line Items]
Number of vehicles committed | vehicle	100,000
Number of vehicles committed, minimum | vehicle	50,000
Number of vehicles committed, additional | vehicle	50,000
Number of years	10 years
Minimum vehicle purchase reduction period	6 months
Revenues		51,400	ر.س 192.6
Accounts receivable, net		$ 84,900			ر.س 318.4	$ 35,500	ر.س 133.2