Long-term debt - Summary of Principal Payment on Long Term Debt Including Obligation Under Finance Lease (Detail) $ in Thousands |
Mar. 28, 2020
USD ($)
|
|---|---|
| Debt Disclosure [Abstract] | |
| 2021 | $ 64 |
| 2022 | 1,814 |
| 2023 | 12,546 |
| 2024 | 17 |
| 2025 | 3 |
| Thereafter | 2,109 |
| Total | $ 16,553 |