LEASES - Components Of Lease Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lease, Cost [Abstract]
Fixed operating lease expenses	$ 23,750	$ 11,420	$ 5,422
Variable operating lease expenses	5,376	3,009	1,078
Short-term lease expenses	1,428	1,222	1,188
Total lease expenses	$ 30,554	$ 15,651	7,688
Weighted Average Remaining Lease Term and Discount Rate [Abstract]
Weighted-average remaining lease term	7 years 3 months 14 days	5 years 4 months 28 days
Weighted-average discount rate	6.27%	7.02%
Operating cash flows:
Payments for operating lease liabilities	$ 6,047	$ 12,781	4,755
Supplemental cash flow data:
Lease liabilities arising from obtaining right-of-use assets	$ 96,555	$ 25,958	$ 14,816