v3.26.1
Summary of Significant Accounting Policies and Recent Accounting Pronouncements (Details)
Jun. 30, 2026
Jun. 30, 2026
Rate
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Dec. 31, 2024
Internally Developed Software            
Accounting Policies [Line Items]            
Useful life 3 years          
RSILP | Special Limited Partner            
Accounting Policies [Line Items]            
Ownership percentage by controlling owners   49.82%        
RSILP | Owners Other Than Rush Street Interactive            
Accounting Policies [Line Items]            
Percentage of common units retained by sellers   50.18% 50.18% 56.46% 58.31% 60.00%