Postretirement Plans - Additional Information (Detail) - USD ($) |
4 Months Ended | |||
|---|---|---|---|---|
Apr. 20, 2024 |
Apr. 22, 2023 |
Dec. 30, 2023 |
Oct. 08, 2022 |
|
| Pension and Other Postretirement Benefits Disclosure [Line Items] | ||||
| Multi-employer pension plan withdrawal liability | $ 1,297,000 | $ 1,300,000 | ||
| Holsum Bakery | ||||
| Pension and Other Postretirement Benefits Disclosure [Line Items] | ||||
| Multi-employer pension plan withdrawal costs | $ 1,400,000 | |||
| Selling, Distribution and Administrative expenses | Holsum Bakery | ||||
| Pension and Other Postretirement Benefits Disclosure [Line Items] | ||||
| Multi-employer pension plan additional withdrawal cost | 100,000 | |||
| Plan No. 1 | ||||
| Pension and Other Postretirement Benefits Disclosure [Line Items] | ||||
| Voluntarily contributions made by an employer | $ 0 | $ 0 | ||