Income Taxes - Summary of Valuation Allowances Against U.S. Net Deferred Income Tax Assets (Detail) - USD ($) $ in Thousands |
May 03, 2026 |
Apr. 27, 2025 |
Apr. 28, 2024 |
Apr. 30, 2023 |
|---|---|---|---|---|
| Valuation Allowance [Line Items] | ||||
| Valuation allowance | $ 28,680 | $ 26,303 | $ 22,004 | $ 18,675 |
| U.S. Capital Loss Carry Forwards [Member] | ||||
| Valuation Allowance [Line Items] | ||||
| Valuation allowance | 2,330 | 2,330 | ||
| U.S. Federal and State [Member] | Deferred Income Tax Assets [Member] | ||||
| Valuation Allowance [Line Items] | ||||
| Valuation allowance | $ 26,350 | $ 23,973 |