Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Apr. 25, 2020	Jan. 25, 2020
Payables and Accruals [Abstract]
Accrued payroll and related taxes	$ 28,159	$ 27,959
Accrued employee benefit and incentive plan costs	29,151	23,340
Accrued construction costs	29,106	27,690
Other current liabilities	20,332	19,786
Other accrued liabilities	$ 106,748	$ 98,775