DEBT - LGSA (Details) - USD ($)		3 Months Ended	12 Months Ended
	Dec. 01, 2021	Mar. 31, 2022	Dec. 31, 2021
DEBT
Debt issuance costs and debt discount, unamortized		$ 25,838,000	$ 28,873,000
Amortization of debt issuance costs and accretion of debt discount		2,458,000
Fair value of term loan		113,000,000.0
Nautilus Joint Venture
DEBT
Minimum interest in Nautilus joint venture	50.00%
Issuance of stock, net of issuance costs (in shares)	839,398
Percentage to outstanding shares	1.50%
One Term Loan investor, NovaWulf Digital Master Fund, L.P.
DEBT
Upfront fee	$ 15,000,000.0
One Term Loan investor, NovaWulf Digital Master Fund, L.P. | Nautilus Joint Venture
DEBT
Issuance costs	4,000,000.0
Upfront fee considered as debt discount	29,800,000
Allocated fair value of equity included in the issuance of loan	$ 25,700,000
Debt issuance costs and debt discount, unamortized		3,000,000.0
Amortization period of debt costs and discount over term of debt	3 years
Amortization of debt issuance costs and accretion of debt discount		25,800,000	$ 28,900,000
One Term Loan investor, NovaWulf Digital Master Fund, L.P. | Nautilus Joint Venture | Property, Plant and Equipment, Other Types [Member]
DEBT
Debt issuance costs and debt discount, unamortized		400,000
One Term Loan investor, NovaWulf Digital Master Fund, L.P. | Nautilus Joint Venture | Equity Method Investments [Member]
DEBT
Debt issuance costs and debt discount, unamortized		200,000
One Term Loan investor, NovaWulf Digital Master Fund, L.P. | Nautilus Joint Venture | Interest Expense [Member]
DEBT
Debt issuance costs and debt discount, unamortized		2,400,000
Term Loan
DEBT
Loan amount	$ 123,500,000
Allocated fair value of equity included in the issuance of loan		4,100,000
Fair value of term loan		1,100,000
Amount of fair value included in debt discount		$ 4,100,000
Effective interest rate of debt		12.90%
Term Loan | Nautilus Joint Venture
DEBT
Upfront fee	1,200,000
Term Loan | One Term Loan investor, NovaWulf Digital Master Fund, L.P. | Nautilus Joint Venture
DEBT
Quarterly periodic payment as a % of the original amount	$ 12.5
Interest rate	11.50%
Upfront fee percentage	1.00%
Upfront fee	$ 1,200,000
Interest rate in case default	13.50%
Prepayment incremental amount	$ 5,000,000.0
Prepayment fees after 1st anniversary	3.00%
Prepayment fees after 2nd anniversary	2.00%