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Long-Term Debt (Parenthetical) (Detail) $ in Millions					3 Months Ended		6 Months Ended		12 Months Ended
Long-Term Debt (Parenthetical) (Detail) $ in Millions	Dec. 23, 2025 USD ($) a	Jul. 25, 2025	Jul. 24, 2025	Apr. 16, 2020	May 02, 2026	May 03, 2025	Aug. 01, 2026	Aug. 02, 2025	Jan. 31, 2026 USD ($)
Debt Instrument [Line Items]
Area of land \| a	178
Current maturities of long-term debt and other current debt									$ 50.6
Senior Secured Term Loan Facilities
Debt Instrument [Line Items]
Long-Term Debt, maturity date					Sep. 24, 2031	Sep. 24, 2031			Sep. 24, 2031
Convertible Senior Notes 1.25% Due December 15 2027
Debt Instrument [Line Items]
Long-Term Debt, maturity date							Dec. 15, 2027	Dec. 15, 2027	Dec. 15, 2027
Long-Term Debt, interest rate							1.25%	1.25%	1.25%
Convertible Senior Notes
Debt Instrument [Line Items]
Long-Term Debt, maturity date				Apr. 15, 2025
Long-Term Debt, interest rate				2.25%
ABL senior secured revolving facility
Debt Instrument [Line Items]
Long-Term Debt, maturity date		Jul. 25, 2030	Dec. 22, 2026				Jul. 25, 2030	Jul. 25, 2030	Jul. 25, 2030
Promissory Note
Debt Instrument [Line Items]
Long-Term Debt, maturity date	Feb. 09, 2026
Long-Term Debt, interest rate	0.00%
Payments to acquire assets	$ 50.6
Secured Overnight Financing Rate Floor \| Senior Secured Term Loan Facilities
Debt Instrument [Line Items]
Long-Term Debt, interest rate							0.00%	0.00%	0.00%
Secured Overnight Financing Rate (SOFR) \| Senior Secured Term Loan Facilities
Debt Instrument [Line Items]
Long-Term Debt, interest rate							1.75%	1.75%	1.75%