BUSINESS COMBINATION - Narrative (Details)		1 Months Ended	3 Months Ended		9 Months Ended
	May 21, 2025 USD ($) day employee shares	Oct. 31, 2025 shares	Sep. 30, 2025 USD ($) shares	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) shares	Sep. 30, 2024 USD ($)	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($) shares
BUSINESS COMBINATION
Change in fair value of contingent consideration			$ 8,797,000	$ 0	$ 10,397,000	$ 0
Common stock shares issued (in shares) | shares			439,214,244		439,214,244			404,223,028
Goodwill			$ 55,457,000		$ 55,457,000			$ 0
Digital asset revenue			43,375,000	27,059,000	125,416,000	105,066,000
Nonrelated Party
BUSINESS COMBINATION
Selling, general and administrative expenses			16,550,000	8,502,000	73,119,000	29,904,000
Related Party
BUSINESS COMBINATION
Selling, general and administrative expenses			126,000	$ 2,976,000	7,989,000	$ 8,399,000
Beowulf E&D
BUSINESS COMBINATION
Percentage of equity interests acquired (in percent)	100.00%
Number of employees | employee	94
Cash consideration	$ 3,000,000
Consideration for transaction (in shares) | shares	5,000,000.0
Transition services agreement period	2 years
Quarterly fees	$ 100
Recorded liability	1,300,000
Liability related to future services			(1,100,000)		(1,100,000)
Contingent cash payments	19,000,000.0						$ 30,000,000
Change in fair value of contingent consideration					1,600,000
Consideration for transaction	54,565,000
Goodwill	55,457,000
Adjustment due to unfavorable terms of a lease	$ (400,000)
Percentage of annual capital expenditures to fund trust	2.00%
Acquisition-related cost, expense					1,500,000
Digital asset revenue			0		0
Beowulf E&D | Nonrelated Party
BUSINESS COMBINATION
Selling, general and administrative expenses			2,300,000		3,400,000
Beowulf E&D | Related Party
BUSINESS COMBINATION
Selling, general and administrative expenses			300,000		400,000
Beowulf E&D | CB-1 Earnout Milestone
BUSINESS COMBINATION
Cash consideration			$ 6,000,000.0
Consideration for transaction (in shares) | shares			1,800,000
Contingent consideration, cash	$ 6,000,000.0
Contingent consideration, common stock	$ 6,500,000
Trailing VWAP for common stock calculation (in days) | day	60
Change in fair value of contingent consideration			$ 8,800,000		$ 8,800,000
Beowulf E&D | Project Financing Closing
BUSINESS COMBINATION
Consideration for transaction (in shares) | shares			1,200,000
Contingent consideration, common stock	$ 6,500,000
Trailing VWAP for common stock calculation (in days) | day	60
Beowulf E&D | Project Financing Closing | Common Stock To Be Issued
BUSINESS COMBINATION
Consideration for transaction (in shares) | shares					1,200,000
Beowulf E&D | Project Financing Closing | Subsequent Events
BUSINESS COMBINATION
Consideration for transaction (in shares) | shares		1,200,000
Beowulf E&D | Project Financing Closing | Related Party | Common Stock To Be Issued
BUSINESS COMBINATION
Recorded liability			$ 10,700,000		$ 10,700,000
Beowulf E&D | CB-3 Earnout Milestone
BUSINESS COMBINATION
Cash consideration			13,000,000
Contingent consideration, cash	$ 13,000,000.0
Change in fair value of contingent consideration			$ 8,800,000		$ 8,800,000