Other Current Assets and Other Assets - Non-current (Details) - USD ($) $ in Thousands	Oct. 24, 2020	Jan. 25, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Long-term contract assets	$ 18,640	$ 22,653
Deferred financing costs	5,734	7,133
Restricted cash	3,731	3,753
Insurance recoveries/receivables for accrued insurance claims	12,506	4,864
Other non-current deposits and assets	7,767	9,035
Other assets	$ 48,378	$ 47,438