v3.25.4
NET INCOME (LOSS) PER SHARE (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Numerator:      
Net income (loss) attributable to FTS $ 133,858 $ 17,214 $ (47,935)
Less: Undistributed earnings attributable to convertible preferred stockholders (71,832) (17,214) 0
Less: Undistributed earnings attributable to convertible preferred stockholders (71,832) (17,214) 0
Net income (loss) attributable to common stockholders, basic and diluted 62,026 0 (47,935)
Net income (loss) attributable to common stockholders, basic and diluted $ 62,026 $ 0 $ (47,935)
Denominator:      
Basic weighted average common shares attributable to FTS (in shares) 114,435,259 65,020,119 51,305,065
Add: effect of dilutive securities related to share-based payment awards (A) (in shares) 27,366,743 7,617,338 0
Diluted weighted average common shares attributable to FTS (in shares) 141,802,002 72,637,457 51,305,065
Net income per common share attributable to FTS, basic (USD per share) $ 0.54 $ 0 $ (0.93)
Net income per common share attributable to FTS, diluted (USD per share) $ 0.44 $ 0 $ (0.93)
Options      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share, amount 22,621,883 7,132,282 0
Warrant      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share, amount 959,984 485,056 0
RSUs      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share, amount   598,104  
Restricted Stock Units Unvested      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share, amount 3,784,876 0 0
Share-Based Payment Arrangement      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share, amount     3,609,301