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Income Taxes - Income Taxes Paid (Net of Refunds) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2026	Aug. 01, 2025	Aug. 02, 2024
Income Taxes
U.S. federal	$ (17,021)	$ 7,100	$ 3,500
U.S. state and local	563	2,153	2,340
Income Tax Paid, after Refund Received, Total	(16,458)	9,253	5,840
Illinois
Income Taxes
U.S. state and local		490	381
Louisiana
Income Taxes
U.S. state and local			1,407
New Jersey
Income Taxes
U.S. state and local		697
North Carolina
Income Taxes
U.S. state and local			(1,419)
Tennessee
Income Taxes
U.S. state and local			502
Texas
Income Taxes
U.S. state and local		649	579
Other
Income Taxes
U.S. state and local	$ 563	$ 317	$ 890