v3.26.1
Equity - Schedule of Economic Interests (Details) - Spark HoldCo
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Class of Stock [Line Items]    
Economic interest 51.79% 51.79%
Affiliated Owners    
Class of Stock [Line Items]    
Economic interest 48.21% 48.21%