Basis of preparation - Subsidiaries (Details) |
6 Months Ended |
|---|---|
Jan. 31, 2026 | |
| Devv Holdings [Member] | |
| Basis of preparation [Abstract] | |
| Place of incorporation | A1 |
| Ownership interest in subsidiaries | 100.00% |
| DESG [Member] | |
| Basis of preparation [Abstract] | |
| Place of incorporation | DE |
| Ownership interest in subsidiaries | 100.00% |
| Finco [Member] | |
| Basis of preparation [Abstract] | |
| Place of incorporation | A1 |
| Ownership interest in subsidiaries | 100.00% |
| Sierra Merger Sub, Inc. [Member[ | |
| Basis of preparation [Abstract] | |
| Place of incorporation | DE |
| Ownership interest in subsidiaries | 100.00% |