v3.26.1
Income Taxes - Narrative (Details) - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Operating Loss Carryforwards [Line Items]      
Net loss before income taxes $ 97,384,000 $ 94,301,000 $ 153,298,000
Current income tax expense (benefit) (49,000.0) 110,000 355,000
Valuation allowance 177,609,000 152,453,000  
Increase in valuation allowance 25,100,000    
Capital loss carryforwards 3,000,000.0    
Tax credit carryforwards 500,000    
Unrecognized tax benefits 0 0  
Unrecognized tax benefits, interest and penalties accrued 0 0  
Income tax payments, net of refunds 0 0 $ 239,000
Bakkt Holdings, Inc.      
Operating Loss Carryforwards [Line Items]      
Net loss before income taxes 72,400,000    
Members Outside Of Reporting Group      
Operating Loss Carryforwards [Line Items]      
Net loss before income taxes 25,000,000.0    
Domestic Tax Jurisdiction      
Operating Loss Carryforwards [Line Items]      
Net operating loss carryforwards 199,300,000 $ 122,700,000  
State and Local Jurisdiction      
Operating Loss Carryforwards [Line Items]      
Net operating loss carryforwards subject to expiration $ 132,800,000