PREPAID EXPENSES AND OTHER CURRENT ASSETS - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid insurance	$ 3,946	$ 476
Prepaid services	4,195	1,918
Vendor funds receivable	1,099	1,058
Other prepaid expenses	2,459	806
Other receivables	301	657
Total	12,000	4,915
Prepaid expenses, noncurrent	$ 10,702	$ 0