RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Greenidge Blocker Corp
Related Party Transaction [Line Items]
Costs reimbursed	$ 0.0	$ 0.2
Atlas Holdings LLC | New York State Department of Environmental Conservation
Related Party Transaction [Line Items]
Letters of credit outstanding, amount	5.0	5.0
Atlas Holdings LLC | Empire Pipeline Incorporated
Related Party Transaction [Line Items]
Letters of credit outstanding, amount	$ 3.6	$ 3.6
Greenidge Generation Holdings Inc | Atlas Holdings LLC And Affiliates
Related Party Transaction [Line Items]
Voting power of outstanding capital stock (as percent)	72.10%