DEBT - Narrative (Details) $ / shares in Units, $ in Thousands			1 Months Ended				3 Months Ended	12 Months Ended
	Mar. 01, 2023 USD ($) shares	Dec. 01, 2021 USD ($) shares	Feb. 29, 2024 USD ($)	Mar. 31, 2023 USD ($) $ / shares shares	Oct. 31, 2022 USD ($) tranche $ / shares shares	Jul. 31, 2022 USD ($) tranche $ / shares shares	Mar. 19, 2024 USD ($)	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($)	May 31, 2021
DEBT
Principal payments on long-term debt								$ 6,599	$ 0
Issuance of common stock, net of issuance costs (in shares) | shares	40,764,706				7,481,747
Fair value of term loan								$ 128,900
Operating lease, term of lease						8 years				5 years
Warrants issued to lenders (in shares) | shares					2,667,678
Exercise price of warrants (in dollars per share) | $ / shares					$ 1.93			$ 0.58
Amortization of debt issuance costs, commitment fees and accretion of debt discount								$ 19,515	11,676
Capitalized interest costs								2,200	5,300
Warrant agreement
DEBT
Proceeds from additional capital raise								5,000
Warrant agreement | Penny Warrants
DEBT
Warrants issued to lenders (in shares) | shares				27,759,265
Exercise price of warrants (in dollars per share) | $ / shares				$ 0.01
Percentage of common stock on fully diluted equity				10.00%
Warrant agreement | Dollar Warrants
DEBT
Warrants issued to lenders (in shares) | shares				13,879,630
Exercise price of warrants (in dollars per share) | $ / shares				$ 1.00
Percentage of common stock on fully diluted equity				5.00%
Delayed Draw Term Loan
DEBT
Allocated fair value of equity included in the issuance of loan					$ 2,900
Effective interest rate of debt					25.10%
Number of tranches | tranche					2
Number of separate increments | tranche					2
Percentage of additional shares received on conversion of additional warrants per each tranche					1.875%
Number of separate sub-tranches | tranche					2
Delayed Draw Term Loan | First Tranche
DEBT
Debt instrument face amount, per tranche					$ 7,500
Delayed Draw Term Loan | Second Tranche
DEBT
Debt instrument face amount, per tranche					7,500
First Amendment Term Loan
DEBT
Amortization of debt issuance costs, commitment fees and accretion of debt discount								21,200	14,200
Interest expense								19,500	9,300
Capitalized interest in property, plant and equipment								1,200	2,600
Capitalized interest costs								500	2,300
Nautilus Joint Venture
DEBT
Issuance of common stock, net of issuance costs (in shares) | shares		839,398
Percentage to outstanding shares		1.50%
Nautilus Joint Venture | One Term Loan investor, NovaWulf Digital Master Fund, L.P.
DEBT
Issuance costs		$ 4,000
Allocated fair value of equity included in the issuance of loan		25,700
Upfront fee considered as debt discount		29,800
Term loan
DEBT
Loan amount		$ 123,500
Principal payments on long-term debt								6,600
Fair value of term loan								1,100
Amount of fair value included in debt discount								4,100
Effective interest rate of debt		12.90%
Term loan | Related Party | NovaWolf Digital Master Fund
DEBT
Loan amount									2,000
Term loan | Related Party | NovaWulf Digital Private Fund
DEBT
Loan amount									$ 15,700
Term loan | Related Party | Certain Member of Company Management & Individual From Board of Directors
DEBT
Loan amount								$ 12,900
Term loan | Subsequent Events
DEBT
Principal payments on long-term debt							$ 33,400
Term loan | Term Sheet | Subsequent Events
DEBT
Principal payments on long-term debt			$ 40,000
Term loan | Minimum | Term Sheet
DEBT
Proceeds from issuance of equity				$ 33,500
Term loan | Nautilus Joint Venture
DEBT
Upfront fee		$ 1,200
Term loan | Nautilus Joint Venture | One Term Loan investor, NovaWulf Digital Master Fund, L.P.
DEBT
Interest rate		11.50%
Interest rate in case default		13.50%
Prepayment incremental amount		$ 5,000
Prepayment fees after 1st anniversary		3.00%
Prepayment fees after 2nd anniversary		2.00%
New Term Facility
DEBT
Funds drawn at closing						$ 15,000
Percentage of cash interest						8.50%
Issuance costs						$ 1,500
Upfront fee						100
Additional term loan facility						$ 50,000
Number of tranches | tranche						3
Warrants issued to lenders (in shares) | shares						5,787,732
Exercise price of warrants (in dollars per share) | $ / shares						$ 0.01
Percentage of outstanding common stock						5.00%
New Term Facility | Second Tranche
DEBT
Warrants issued as a percentage of diluted equity						3.75%
Value of warrants						$ 15,000
New Term Facility | Third Tranche
DEBT
Warrants issued as a percentage of diluted equity						4.25%
Value of warrants						$ 20,000
New Term Facility | Maximum
DEBT
Remaining line of credit						$ 35,000
New Term Facility | Nautilus Joint Venture
DEBT
Percentage of ownership interest						25.00%
First Amendment Term Loan
DEBT
Effective interest rate of debt								13.10%
Percentage of outstanding common stock						2.00%
Third-party fees								$ 400
Fees paid to lenders and the allocated value of the common stock warrants								$ 3,500
Delayed Draw Term Loan
DEBT
Percentage of outstanding common stock						3.00%
Fees paid to lenders and the fair value of the common stock warrants						$ 3,400
Delayed Draw Term Loan | Delayed Draw Term Loan
DEBT
Loan amount					$ 15,000
Fifth Amendment Term Loan
DEBT
Effective interest rate of debt	17.00%
Fees paid to lenders and the allocated value of the common stock warrants	$ 16,000