Summary of Significant Accounting Policies and Recent Accounting Pronouncements (Details) |
Sep. 30, 2026
Rate
|
Dec. 31, 2025
Rate
|
|---|---|---|
| Internally Developed Software | ||
| Accounting Policies [Line Items] | ||
| Useful life | 3 years | |
| RSILP | Special Limited Partner | ||
| Accounting Policies [Line Items] | ||
| Ownership percentage by controlling owners | 49.90% | 43.54% |
| RSILP | Owners Other Than Rush Street Interactive | ||
| Accounting Policies [Line Items] | ||
| Ownership percentage by controlling owners | 50.10% | 56.46% |