REVENUE - Schedule of revenue disaggregated by geographic area (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Total revenue	$ 7,839,444	$ 1,277,481	$ 533,735
United States
Disaggregation of Revenue [Line Items]
Total revenue	6,339,270	966,153	417,260
Rest of the World
Disaggregation of Revenue [Line Items]
Total revenue	$ 1,500,174	$ 311,328	$ 116,475