Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Jul. 25, 2020	Jan. 25, 2020
Payables and Accruals [Abstract]
Accrued payroll and related taxes	$ 30,661	$ 27,959
Accrued employee benefit and incentive plan costs	22,974	23,340
Accrued construction costs	25,282	27,690
Other current liabilities	29,910	19,786
Other accrued liabilities	$ 108,827	$ 98,775