v3.26.1
Reverse Recapitalization - Narrative (Details)
 3 Months Ended 12 Months Ended
Sep. 24, 2025
USD ($)
tranche
$ / shares
shares
Mar. 31, 2026
$ / shares
shares
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
shares
Dec. 31, 2023
USD ($)
Sep. 23, 2025
shares
Sep. 22, 2025
$ / shares
shares
Sep. 15, 2025
USD ($)
Schedule Of Reverse Recapitalization [Line Items]                  
Recapitalization exchange ratio 0.66                
Common stock, outstanding (in shares) 174,957,000 177,476,000   175,440,000 58,057,000        
Reverse recapitalization, consideration received | $ $ 171,200,000                
Proceeds from issuance of Series A cumulative redeemable convertible preferred stock | $ 145,000,000.0     $ 145,000,000 $ 0 $ 0      
Proceeds from the reverse recapitalization, net of transaction costs | $ 26,200,000     $ 26,239,000 $ 0 $ 0      
Reverse recapitalization, transaction costs, expensed | $ $ 3,200,000                
Series A redeemable convertible preferred stock issued in connection with reverse recapitalization, net (in shares)       142,000          
Reverse recapitalization, contingent consideration, (in shares)   6,250,000   6,250,000          
PIPE Warrants                  
Schedule Of Reverse Recapitalization [Line Items]                  
Warrant exercise price (in dollars per share) | $ / shares   $ 12.00   $ 12.00          
NRA Warrants                  
Schedule Of Reverse Recapitalization [Line Items]                  
Warrant exercise price (in dollars per share) | $ / shares   12.00   12.00          
Public Warrants                  
Schedule Of Reverse Recapitalization [Line Items]                  
Warrant exercise price (in dollars per share) | $ / shares   9.28   9.28          
Number of shares called by each warrant (in shares) 1                
Private Placement Warrants                  
Schedule Of Reverse Recapitalization [Line Items]                  
Warrant exercise price (in dollars per share) | $ / shares   $ 9.28   $ 9.28          
Number of shares called by each warrant (in shares) 1                
Legacy Kodiak                  
Schedule Of Reverse Recapitalization [Line Items]                  
Reverse recapitalization, transaction costs | $ $ 32,000,000.0                
AACT                  
Schedule Of Reverse Recapitalization [Line Items]                  
Common stock, outstanding (in shares)             49,360,000    
Intangible assets, net (including goodwill) | $ $ 0                
AACT | Redeemable Warrants of AACT                  
Schedule Of Reverse Recapitalization [Line Items]                  
Warrant outstanding (in shares) 24,999,987                
AACT | Private Placement Warrants                  
Schedule Of Reverse Recapitalization [Line Items]                  
Warrant outstanding (in shares) 14,300,000                
Cumulative redeemable convertible preferred stock                  
Schedule Of Reverse Recapitalization [Line Items]                  
Preferred stock, convertible, conversion ratio 1           1    
Series A Cumulative Convertible Preferred Stock                  
Schedule Of Reverse Recapitalization [Line Items]                  
Temporary equity, carrying amount, period decrease | $ $ 6,000,000.0                
Common Stock Additional Paid-In Capital | Additional Paid-In Capital                  
Schedule Of Reverse Recapitalization [Line Items]                  
Conversion of redeemable convertible preferred stock in connection with reverse recapitalization | $ $ 22,800,000                
NRA Shares                  
Schedule Of Reverse Recapitalization [Line Items]                  
Shares converted, recapitalization (in shares) 368,000                
Sponsor Earn Out Securities                  
Schedule Of Reverse Recapitalization [Line Items]                  
New shares issued during period (in shares) 6,250,000 6,250,000              
Reverse recapitalization, contingent consideration, (in shares) 6,250,000                
Sponsor Earn Out Securities | Triggering Event I Threshold                  
Schedule Of Reverse Recapitalization [Line Items]                  
Sale of stock, price per share (in dollars per share) | $ / shares $ 18.00                
Contingent consideration, stock price, trading days, minimum (in days) 20 days                
Contingent consideration, stock price, consecutive trading day period (in days) 30 days                
Contingent consideration, earn out period (in years) 4 years                
Legacy Kodiak Advisor Shares                  
Schedule Of Reverse Recapitalization [Line Items]                  
Shares converted, recapitalization (in shares) 1,092,000                
Earn Out Securities                  
Schedule Of Reverse Recapitalization [Line Items]                  
Reverse recapitalization, contingent consideration, (in shares) 74,998,317                
Number of tranches | tranche 3                
Earn Out Securities | Triggering Event I                  
Schedule Of Reverse Recapitalization [Line Items]                  
Reverse recapitalization, contingent consideration, (in shares) 24,999,439                
Sale of stock, price per share (in dollars per share) | $ / shares $ 18.00                
Contingent consideration, stock price, trading days, minimum (in days) 20 days                
Contingent consideration, stock price, consecutive trading day period (in days) 30 days                
Earn Out Securities | Triggering Event II                  
Schedule Of Reverse Recapitalization [Line Items]                  
Reverse recapitalization, contingent consideration, (in shares) 24,999,439                
Sale of stock, price per share (in dollars per share) | $ / shares $ 23.00                
Contingent consideration, stock price, trading days, minimum (in days) 20 days                
Contingent consideration, stock price, consecutive trading day period (in days) 30 days                
Earn Out Securities | Triggering Event III                  
Schedule Of Reverse Recapitalization [Line Items]                  
Reverse recapitalization, contingent consideration, (in shares) 24,999,439                
Sale of stock, price per share (in dollars per share) | $ / shares $ 28.00                
Contingent consideration, stock price, trading days, minimum (in days) 20 days                
Contingent consideration, stock price, consecutive trading day period (in days) 30 days                
Affiliate of AACT | 2025 Simple Agreements For Future Equity                  
Schedule Of Reverse Recapitalization [Line Items]                  
SAFE agreement, amount exchanged | $ $ 10,000,000.0                
Publicly held shares of AACT | Common Class A                  
Schedule Of Reverse Recapitalization [Line Items]                  
Common stock, outstanding (in shares) 5,492,904                
Preferred Investors                  
Schedule Of Reverse Recapitalization [Line Items]                  
Proceeds from issuance of preferred stock and warrants | $ $ 145,000,000.0                
Preferred Investors | PIPE Warrants                  
Schedule Of Reverse Recapitalization [Line Items]                  
Percentage of warrant to purchase (in percent) 125.00%                
Warrant exercise price (in dollars per share) | $ / shares $ 12.00                
Warrants issued during period (in shares) 17,769,375                
Preferred Investors | AACT                  
Schedule Of Reverse Recapitalization [Line Items]                  
Subscription agreement, aggregate purchase price | $                 $ 145,000,000.0
Preferred Investors | Series A Cumulative Convertible Preferred Stock                  
Schedule Of Reverse Recapitalization [Line Items]                  
Par value (in dollars per share) | $ / shares $ 0.0001                
Stated value (in dollars per share) | $ / shares $ 1,200                
Series A redeemable convertible preferred stock issued in connection with reverse recapitalization, net (in shares) 142,155                
Non Redemption Investors | NRA Warrants                  
Schedule Of Reverse Recapitalization [Line Items]                  
Warrants issued during period (in shares) 7,606,666                
Loss on issuance of warrants | $     $ 37,000,000.0 $ 37,000,000.0          
Non Redemption Investors | AACT & Legacy Kodiak                  
Schedule Of Reverse Recapitalization [Line Items]                  
Non-redemption agreement, shares that can't be redeemed (in shares)               3,319,712  
Non Redemption Investors | NRA Shares                  
Schedule Of Reverse Recapitalization [Line Items]                  
New shares issued during period (in shares) 368,028                
Loss on issuance of common stock | $     $ 3,200,000 $ 3,200,000          
Non Redemption Investors | NRA Shares | NRA Warrants                  
Schedule Of Reverse Recapitalization [Line Items]                  
Warrant exercise price (in dollars per share) | $ / shares               $ 12.00  
Ares Acquisition Holdings II LP | Class a Ordinary shares of AACT                  
Schedule Of Reverse Recapitalization [Line Items]                  
Common stock, outstanding (in shares) 12,500,000                
Ares Acquisition Holdings II LP | Sponsor Earn Out Securities                  
Schedule Of Reverse Recapitalization [Line Items]                  
Shares converted, recapitalization (in shares) 12,500,000                
Advisor of Legacy Kodiak | Legacy Kodiak Advisor Shares                  
Schedule Of Reverse Recapitalization [Line Items]                  
Stock issued during period for services (in shares) 1,091,519                
Stock issued during period for services | $ $ 12,500,000