Inventories - Schedule of Breakdown of Provision for Obsolescence (Details) - CAD ($) $ in Millions |
Mar. 29, 2026 |
Mar. 30, 2025 |
|---|---|---|
| Inventories [Abstract] | ||
| Raw material shrink reserves | $ 0.1 | $ 0.1 |
| Finished goods shrink reserves | 0.8 | 1.0 |
| Raw material obsolete inventory reserves | 15.3 | 18.5 |
| Finished goods obsolete inventory reserves | 28.2 | 31.2 |
| Provision for obsolescence | $ 44.4 | $ 50.8 |