COMMITMENTS AND CONTINGENCIES - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Purchase Obligation		$ 142,200
Long term purchase commitment, Amount	$ 15,000	$ 38,500
Contractual obligation, Per month amount	$ 158
Contract terms		The contract ends in September 2030 and may be terminated by either party with 12 months' notice after the initial 10-year period.
Notice period for contract termination	12 months
Initial period after which notice period for contract termination occurs	10 years
Committed secured financing on equipment amount		$ 5,200