v3.25.4
BUSINESS AND ORGANIZATION (Details)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 12, 2025
USD ($)
$ / shares
shares
Aug. 29, 2025
Mar. 18, 2024
corporation
shares
Mar. 31, 2024
USD ($)
$ / shares
Sep. 30, 2025
USD ($)
$ / shares
shares
Sep. 30, 2024
USD ($)
Sep. 30, 2025
USD ($)
$ / shares
shares
Sep. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
$ / shares
shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Class of Stock [Line Items]                    
Number of outstanding shares converted Into common stock of acquiree (in shares)     1              
Number of affiliated corporations under common control | corporation     2              
Number of corporations owned directly or indirectly | corporation     2              
Conversion rate   0.2                
Proceeds from issuance of common stock in connection with initial public offering, net of underwriting discounts and commissions | $             $ 663,443 $ 0    
Stock issuance costs | $                 $ 1,517 $ 0
Common stock, shares authorized (in shares)                 240,820,153 197,100,000
Common stock, par value per share (in USD per share) | $ / shares       $ 0.0001         $ 0.00001 $ 0.00001
Preferred stock, shares authorized (in shares)                 115,983,447 106,615,302
Preferred stock, par value (in dollars per share) | $ / shares                 $ 0.00001 $ 0.00001
Stock-based compensation expense | $         $ 19,928 $ 7,104 30,593 $ 38,545 $ 45,310 $ 13,450,000
Service and Performance-Based RSUs                    
Class of Stock [Line Items]                    
Stock-based compensation expense | $         $ 11,000   $ 11,000      
Common Class A                    
Class of Stock [Line Items]                    
Convertible preferred stock, shares issued (in shares) 113,910,905                  
Common stock, shares authorized (in shares)         1,000,000,000   1,000,000,000   0  
Common stock, par value per share (in USD per share) | $ / shares         $ 0.0001   $ 0.0001      
Number of shares vested (in shares)         1,599,216          
Common Class A | IPO                    
Class of Stock [Line Items]                    
Number of shares issued (in shares) 36,225,000                  
Offering price per share (in dollars per share) | $ / shares $ 25.00                  
Proceeds from issuance of common stock in connection with initial public offering, net of underwriting discounts and commissions | $ $ 663,400                  
Stock issuance costs | $ $ 8,800                  
Common Class A | IPO-Shareholders                    
Class of Stock [Line Items]                    
Number of shares issued (in shares) 7,993,395                  
Common Class A | IPO-Over Allotment Option                    
Class of Stock [Line Items]                    
Number of shares issued (in shares) 4,725,000                  
Series E                    
Class of Stock [Line Items]                    
Conversion of stock, shares converted (in shares) 2,010,410                  
Common Class B                    
Class of Stock [Line Items]                    
Conversion of stock, shares converted (in shares) 1,500,000                  
Common stock, shares authorized (in shares)         200,000,000   200,000,000   0  
Common stock, par value per share (in USD per share) | $ / shares         $ 0.0001   $ 0.0001      
Common Class B | Controlling Party                    
Class of Stock [Line Items]                    
Convertible preferred stock, shares issued (in shares) 39,393,047                  
Blockchain Common Stock                    
Class of Stock [Line Items]                    
Common stock, shares authorized (in shares)         500,000,000   500,000,000   0  
Common stock, par value per share (in USD per share) | $ / shares         $ 0.0001   $ 0.0001      
Convertible Preferred Stock                    
Class of Stock [Line Items]                    
Stock issuance costs | $       $ 1,500            
Preferred stock, shares authorized (in shares)         100,000,000   100,000,000      
Preferred stock, par value (in dollars per share) | $ / shares         $ 0.0001   $ 0.0001      
Figure Technologies, Inc.                    
Class of Stock [Line Items]                    
Merger, ownership interest acquired percentage     100.00%              
Figure Technologies, Inc. | Third-party shareholders                    
Class of Stock [Line Items]                    
Noncontrolling owner, interest percentage     74.10%              
Figure Technologies, Inc. | Related parties holders of FTI stock                    
Class of Stock [Line Items]                    
Noncontrolling owner, interest percentage     25.90%