Bank Indebtedness - Summary of Company's Senior Credit Facility (Detail) - Senior Secured Notes [Member] - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Mar. 28, 2020 |
Mar. 30, 2019 |
|
| Line of Credit Facility [Line Items] | ||
| Maximum borrowing outstanding during the year | $ 64,702 | $ 55,596 |
| Average outstanding balance during the year | $ 56,001 | $ 44,772 |
| Weighted average interest rate for the year | 4.20% | 3.90% |
| Effective interest rate at year-end | 3.80% | 4.20% |