SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)		3 Months Ended		9 Months Ended
	Jan. 01, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2024	Jan. 23, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Net loss		$ (455,259,000)	$ (41,146,000)	$ (1,049,464,000)	$ (50,794,000)
Change in fair value of warrant and contingent value rights		408,520,000	0	1,144,441,000	0
Cash and cash equivalents		253,019,000	42,146,000	253,019,000	42,146,000			$ 50,409,000
Working capital, net		201,300,000		201,300,000
Stockholders' deficit		729,395,000	418,726,000	729,395,000	418,726,000	$ 1,083,874,000		596,941,000	$ 392,441,000	$ 409,346,000
Digital assets, period to sell after receipt of payment	10 days
Digital assets		0	559,000	0	559,000			2,284,000		$ 724,000
Deferred revenue		16,900,000		16,900,000				$ 9,800,000
Deferred revenue recognized		100,000	$ 2,700,000	$ 6,600,000	20,500,000
Performance obligation period				30 months
Contingent value rights
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative warrant liabilities		7,000,000		$ 7,000,000			$ 86,300,000
GUC Contingent Value Right
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative warrant liabilities		7,000,000		7,000,000			86,300,000
Change in fair value		(6,000,000)		(79,300,000)
Warrant liability
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative warrant liabilities		1,020,000,000.00		1,020,000,000.00			$ 345,900,000
Change in fair value		(414,500,000)		1,223,775,000	$ 0
Digital asset hosted mining revenue
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Performance obligation not yet recognized		$ 16,200,000		$ 16,200,000
Digital asset hosted mining revenue | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-10-01
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Remaining performance obligation, percentage		100.00%		100.00%
Performance obligation, expected timing of satisfaction		12 months		12 months
Digital asset hosted mining revenue | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contract with customer, term				15 months
Digital asset hosted mining revenue | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contract with customer, term				24 months
Money Market Funds | Level 1
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Cash equivalents		$ 243,800,000		$ 243,800,000