Income Taxes - Reconciliation of Income Tax Expense (Benefit) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jan. 31, 2026	Jan. 25, 2025	Jan. 31, 2026	Jan. 25, 2025
Income taxes
Provision for (benefit from) income taxes	$ (19,486,000)	$ (605,000)	$ (36,960,000)	$ 659,000
Effective tax benefit rate (as a percent)	(11.10%)	(25.60%)	(13.20%)	(2.50%)