SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended	9 Months Ended
	Feb. 29, 2024 dataCenterHostingContract	Sep. 30, 2025 USD ($) miningPoolOperator hour bitcoinMiner $ / shares shares	Sep. 30, 2024 USD ($) bitcoinMiner miningPoolOperator	Jun. 30, 2025 segment	Sep. 30, 2025 USD ($) miningPoolOperator segment hour bitcoinMiner $ / shares shares	Sep. 30, 2024 USD ($) bitcoinMiner miningPoolOperator	Dec. 31, 2024 USD ($)	Jan. 01, 2024 USD ($)	Oct. 31, 2022 $ / shares
Significant Accounting Policies [Line Items]
Crypto asset, mining pool, contract term | hour		24			24
Digital asset revenue		$ 43,375	$ 27,059		$ 125,416	$ 105,066
Number of data center hosting contracts | dataCenterHostingContract	1
Quoted price of bitcoin		38			38
HPC lease revenue		7,203	0		7,203	0
Power curtailment credits		7,400	4,100		13,300	7,300
Miner hosting revenue			0			800
Cash and cash equivalents		711,315			711,315		$ 274,065
FDIC cash insured amount		250			250
Cash exceeding FDIC limit		650,400			650,400
Restricted cash		1,439			1,439		0
Accumulated deficit		(867,114)			(867,114)		(332,276)
Gain on fair value of digital assets, net		$ 300	$ 1,000		$ 400	$ 1,600
Number suppliers for bitcoin miners | bitcoinMiner		1	1		1	1
Number of mining pool operators | miningPoolOperator		1	1		1	1
Property, plant and equipment, gross		$ 966,041			$ 966,041		477,941
Number of common stock issued upon conversion of preferred stock (in shares) | shares		1,400,000			1,400,000
Warrants outstanding (in shares) | shares		87,303,633			87,303,633
Exercise price of warrants (in dollars per share) | $ / shares		$ 0.23			$ 0.23				$ 1.93
Number of operating segments | segment				1	2
Revenue Benchmark | Customer Concentration Risk | One Customer
Significant Accounting Policies [Line Items]
Concentration risk percentage		100.00%			100.00%
Restricted Stock Units (RSUs)
Significant Accounting Policies [Line Items]
Number of shares outstanding (in shares) | shares		15,238,426			15,238,426
Computer equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life		5 years			5 years
Miners
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life		4 years			4 years
Furniture and Fixtures and Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life		10 years			10 years
Leasehold Improvements And Electrical Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life		25 years			25 years
Deposits on miners
Significant Accounting Policies [Line Items]
Property, plant and equipment, gross		$ 0			$ 0		$ 53,913
Cumulative Effect, Period of Adoption, Adjusted Balance
Significant Accounting Policies [Line Items]
Accumulated deficit								$ 37
Crypto Mining
Significant Accounting Policies [Line Items]
Digital asset revenue		$ 43,400	$ 27,100		$ 125,400	$ 104,300