SUBSEQUENT EVENTS	9 Months Ended
	Sep. 30, 2022
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTSIn October 2022, Piedmont was selected for a $141.7 million grant from the U.S. Department of Energy’s (“DOE”) Office of Manufacturing and Energy Supply Chains and Office of Energy Efficiency and Renewable Energy under the Bipartisan Infrastructure Law—Battery Materials Processing and Battery Manufacturing to expand domestic manufacturing of batteries for electric vehicles and for materials and components currently imported from other countries. The grant funding is specifically for the construction of our Tennessee Lithium project. The final details of the project grant are subject to negotiations. The grant will not be final until Piedmont and the DOE have agreed to the specific terms of the grant. Once the terms have been finalized, funding of the grant will remain subject to satisfaction of conditions set forth in those terms.