Postretirement Plans - Additional Information (Detail) - USD ($) |
3 Months Ended | 6 Months Ended |
|---|---|---|
Jul. 18, 2026 |
Jul. 18, 2026 |
|
| Plan No. 1 | ||
| Pension and Other Postretirement Benefits Disclosure [Line Items] | ||
| Voluntarily contributions made by an employer | $ 0 | $ 0 |