v3.26.3
Stock-based Compensation (FY) - Stock Option Activity (Details) - Outstanding stock options
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2025
USD ($)
$ / shares
shares
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]  
Outstanding at beginning of period (in shares) | shares 7,634,937
Weighted-Average Exercise Price - Outstanding at beginning of period (in usd per share) | $ / shares $ 6.24
Outstanding at end of period (in shares) | shares 9,954,872
Weighted-Average Exercise Price - Outstanding at end of period (in usd per share) | $ / shares $ 4.71
Weighted Average Remaining Contractual Life - Outstanding 7 years 1 month 28 days
Outstanding, Aggregate Intrinsic Value | $ $ 0
Exercisable at end of period (shares) | shares 6,203,856
Weighted-Average Exercise Price - Exercisable at end of period (in usd per share) | $ / shares $ 6.19
Weighted Average Remaining Contractual Life - Exercisable 6 years 3 months 3 days
Exercisable, Aggregate Intrinsic Value | $ $ 0
Granted (in shares) | shares 3,390,691
Weighted-Average Exercise Price - Granted (in usd per share) | $ / shares $ 1.49
Exercised (in shares) | shares 0
Weighted-Average Exercise Price - Exercised (in usd per share) | $ / shares $ 0
Cancelled (in shares) | shares (1,070,756)
Weighted-Average Exercise Price - Cancelled (in usd per share) | $ / shares $ 5.43