v3.26.1
BUSINESS COMBINATIONS AND ASSET ACQUISITIONS - Narrative (Details)
shares in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
May 22, 2026
USD ($)
MW
kV
Feb. 02, 2026
USD ($)
May 21, 2025
USD ($)
day
employee
shares
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
shares
Aug. 05, 2026
a
Jul. 31, 2026
USD ($)
Apr. 30, 2025
USD ($)
BUSINESS COMBINATION                      
Change in fair value of contingent consideration       $ 0 $ 1,600,000 $ 0 $ 1,600,000        
Goodwill       55,457,000   55,457,000   $ 55,457,000      
Digital asset revenue       12,835,000 47,636,000 25,825,000 82,041,000        
Property, plant and equipment, net       3,600,191,000   3,600,191,000   1,507,699,000      
Other assets       82,928,000   82,928,000   8,091,000      
Letters of credit issued                     $ 1,400,000
Justified Data Campus                      
BUSINESS COMBINATION                      
Cash consideration   $ 200,000,000                  
Acquired equity interest   6.80%                  
Muskie                      
BUSINESS COMBINATION                      
Cash consideration $ 30,000,000                    
Asset acquisition, percentage of shares acquired 100.00%                    
Deferred cash consideration $ 50,000,000.0         50,000,000.0          
Contingent consideration 90,000,000                    
Asset acquisition, consideration transferred, contingent consideration per megawatt $ 90,000                    
Asset acquisition, consideration transferred, contingent consideration, period 15 years                    
Asset acquisition, consideration transferred, additional contingent consideration $ 50,000,000.0                    
Asset acquisition, consideration transferred, additional contingent consideration per megawatt $ 100,000                    
Payment to acquire additional consideration up to maximum per megawatt | MW 500                    
Asset acquisition payment to acquire additional consideration in excess of megawatt | MW 1,000                    
Asset acquisition, consideration transferred, additional contingent consideration, period 15 years                    
Property, plant and equipment, net       89,300,000   89,300,000          
Other assets       78,200,000   78,200,000          
Asset acquisition, consideration transferred, energy | MW 1,000                    
Muskie | Electric Service Agreement                      
BUSINESS COMBINATION                      
Asset acquisition, consideration transferred, energy | MW 500                    
Consideration transferred agreement initial term vesting period 20 years                    
Asset acquisition, consideration transferred, load capacity megawatt | MW 500                    
Asset acquisition, consideration transferred, collateral amount $ 310,700,000                    
Consideration transferred effective date of period 60 days                    
Muskie | Letter Of Agreement                      
BUSINESS COMBINATION                      
Energy agreement (in MW) | MW 1,000                    
Asset acquisition, consideration transferred, energy substation kilovolt | kV 345                    
Asset acquisition, consideration transferred, energy transmission network kilovolt | kV 765                    
Asset acquisition, consideration transferred, energy infrastructure | MW 1,000                    
Asset acquisition, consideration transferred, collateral amount $ 320,200,000                    
Consideration transferred effective date of period 60 days                    
First installment $ 50,000,000.0                    
Muskie | Subsequent Events                      
BUSINESS COMBINATION                      
Area of real estate property (in acres) | a                 308    
Option to purchase area of land (in acres) | a                 144    
Letters of credit issued                   $ 360,700,000  
Muskie | Revolving Credit Facility | Subsequent Events | Electric Service Agreement                      
BUSINESS COMBINATION                      
Asset acquisition, consideration transferred, issued amount                   74,000,000.0  
Muskie | Letter of Credit | Subsequent Events | Electric Service Agreement                      
BUSINESS COMBINATION                      
Asset acquisition, consideration transferred, issued amount                   286,700,000  
Asset acquisition, consideration transferred, cash collateralized deposit amount                   $ 295,300,000  
Asset acquisition, consideration transferred, related letters of credit percentage                   103.00%  
Nonrelated Party                      
BUSINESS COMBINATION                      
Selling, general and administrative expenses       112,411,000 9,996,000 240,016,000 56,569,000        
Related Party                      
BUSINESS COMBINATION                      
Selling, general and administrative expenses       14,529,000 4,292,000 14,688,000 7,863,000        
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     5.0                
Transition services agreement period     2 years                
Quarterly fees     $ 100                
Recorded liability     1,300,000                
Liability related to future services       600,000   600,000   900,000      
Contingent cash payments     19,000,000.0   30,000,000.0   30,000,000.0        
Change in fair value of contingent consideration         1,600,000   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%                
Capital expenditures           20,600,000          
Acquisition-related cost, expense               $ 1,500,000      
Digital asset revenue       0 0 0 0        
Beowulf E&D | Nonrelated Party                      
BUSINESS COMBINATION                      
Selling, general and administrative expenses       4,900,000 1,100,000 9,900,000 1,100,000        
Beowulf E&D | Related Party                      
BUSINESS COMBINATION                      
Selling, general and administrative expenses       $ 300,000 $ 100,000 $ 600,000 $ 100,000        
Beowulf E&D | Project Financing Closing                      
BUSINESS COMBINATION                      
Consideration for transaction (in shares) | shares               1.2      
Contingent consideration, common stock     $ 6,500,000                
Trailing VWAP for common stock calculation (in days) | day     60                
Beowulf E&D | CB-3 Earnout Milestone                      
BUSINESS COMBINATION                      
Cash consideration               $ 13,000,000.0      
Contingent consideration, cash     $ 13,000,000.0                
Change in fair value of contingent consideration               10,400,000      
Beowulf E&D | CB-1 Earnout Milestone                      
BUSINESS COMBINATION                      
Cash consideration               $ 6,000,000.0      
Consideration for transaction (in shares) | shares               1.8      
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               $ 10,400,000