v3.26.1
Stockholders’ Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended
Apr. 29, 2026
Mar. 02, 2026
Jul. 30, 2025
Jul. 28, 2025
Feb. 28, 2026
Jan. 31, 2026
Mar. 31, 2026
Mar. 31, 2026
Dec. 31, 2025
Jan. 16, 2026
Nov. 03, 2025
Nov. 02, 2025
Aug. 06, 2025
Jun. 17, 2025
Jun. 16, 2025
Class of Stock [Line Items]                              
Common stock, par value (in dollars per share)             $ 0.0001 $ 0.0001 $ 0.0001            
Preferred stock, authorized (in shares)             1,000,000 1,000,000              
Preferred stock, par value (in dollars per share)             $ 0.0001 $ 0.0001              
Preferred stock, issued (in shares)             0 0              
Common stock, outstanding (in shares)             30,709,542 30,709,542 25,523,039            
Common stock, shares issued (in shares)             30,709,542 30,709,542 25,523,039            
Common stock, authorized (in shares)             560,000,000 560,000,000 560,000,000       570,000,000 70,000,000  
Subsequent Event                              
Class of Stock [Line Items]                              
Exercise of warrants (in shares) 2,475,201                            
Pre-funded warrants                              
Class of Stock [Line Items]                              
Exercise price (in dollars per share)   $ 0.0001                          
Class A Common Stock                              
Class of Stock [Line Items]                              
Common stock, par value (in dollars per share)             $ 0.0001 $ 0.0001           $ 0.0001  
Common stock, authorized (in shares)             560,000,000 560,000,000         560,000,000 60,000,000 30,000,000
Dividends               $ 0              
Class V Common Stock                              
Class of Stock [Line Items]                              
Common stock, par value (in dollars per share)                       $ 0.0001      
Common stock, outstanding (in shares)             0 0 0            
Common stock, shares issued (in shares)             0 0 0            
Common stock, authorized (in shares)                       10,000,000      
Bakkt Class A Common Stock                              
Class of Stock [Line Items]                              
Common stock, par value (in dollars per share)                     $ 0.0001        
NewCo Class A Common Stock                              
Class of Stock [Line Items]                              
Common stock, par value (in dollars per share)                     0.0001        
Bakkt Class V Common Stock                              
Class of Stock [Line Items]                              
Common stock, par value (in dollars per share)                     0.0001        
NewCo Class V Common Stock                              
Class of Stock [Line Items]                              
Common stock, par value (in dollars per share)                     $ 0.0001        
Underwriting Agreement                              
Class of Stock [Line Items]                              
Net proceeds     $ 70,400                        
Underwriting Agreement | Pre-funded warrants                              
Class of Stock [Line Items]                              
Sale of stock, number of units/warrants issued (in shares)       746,373                      
Sale of stock (in dollars per share)       $ 9.9999                      
Exercise price (in dollars per share)       $ 0.0001                      
Underwriting Agreement | Class A Common Stock                              
Class of Stock [Line Items]                              
Sale of stock, number of units/warrants issued (in shares)       6,753,627                      
Sale of stock (in dollars per share)       $ 10.00                      
Common stock, par value (in dollars per share)       $ 0.0001                      
Underwriting Agreement | Class A Common Stock | Pre-funded warrants                              
Class of Stock [Line Items]                              
Sale of stock, number of units/warrants issued (in shares)       746,373                      
Sale of stock (in dollars per share)       $ 9.9999                      
Exercise of warrants (in shares)                 743,362            
Exercise price (in dollars per share)       $ 0.0001                      
Registered Direct Offering                              
Class of Stock [Line Items]                              
Sale of stock (in dollars per share)   $ 8.75                          
Net proceeds         $ 48,100                    
Registered Direct Offering | Pre-funded warrants                              
Class of Stock [Line Items]                              
Sale of stock, number of units/warrants issued (in shares)   2,475,201                          
Sale of stock (in dollars per share)   $ 8.7499                          
Registered Direct Offering | Class A Common Stock                              
Class of Stock [Line Items]                              
Sale of stock, number of units/warrants issued (in shares)   3,024,799                          
At-the-Market Offering                              
Class of Stock [Line Items]                              
Sale of stock, number of units/warrants issued (in shares)             1,990,434                
Maximum sales price                   $ 300,000          
Gross proceeds             $ 21,500                
Net proceeds           $ 21,500 $ 20,800