Benefit Plans and Stock-Based Compensation - Summary of Birks' Restricted Stock Units And Deferred Share Units (Detail) - shares |
12 Months Ended | ||
|---|---|---|---|
Mar. 28, 2026 |
Mar. 29, 2025 |
Mar. 30, 2024 |
|
| Cash Settled Deferred Share Units [Member] | |||
| Schedule Restricted Stock Options And Deferred Stock Units [Line Items] | |||
| Beginning balance | 231,621 | 96,688 | 35,584 |
| Grants of new units | 245,454 | 143,829 | 70,000 |
| Exercised | (61,094) | (8,896) | (8,896) |
| Ending balance | 415,981 | 231,621 | 96,688 |
| Cash Settled Restricted Stock Units [Member] | |||
| Schedule Restricted Stock Options And Deferred Stock Units [Line Items] | |||
| Beginning balance | 0 | 0 | 50,000 |
| Exercised | 0 | (50,000) | |
| Ending balance | 0 | 0 | 0 |
| Equity Settled Deferred Share Units [Member] | |||
| Schedule Restricted Stock Options And Deferred Stock Units [Line Items] | |||
| Beginning balance | 331,764 | 740,482 | 750,482 |
| Exercised | (110,588) | (408,718) | (10,000) |
| Ending balance | 221,176 | 331,764 | 740,482 |