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Other Current Assets and Other Assets - Current (Details) - USD ($)
$ in Thousands
Oct. 27, 2018
Jan. 27, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Prepaid expenses $ 16,957 $ 13,167
Insurance recoveries/receivables for accrued insurance claims 0 13,701
Receivables on equipment sales 672 31
Deposits and other current assets, including restricted cash 16,381 12,811
Total other current assets $ 34,010 $ 39,710