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Property, Plant and Equipment (Tables)
12 Months Ended
Jan. 31, 2021
Property, Plant and Equipment [Abstract]  
Schedule of property, plant and equipment
The following is a summary of property and equipment:
(in thousands)Estimated Useful LivesJanuary 31, 2021January 26, 2020
Land$13,605   $12,143 
Buildings
7 to 39 years
35,106   35,801 
Leasehold improvements
2 to 10 years
9,271   10,148 
Machinery and equipment
3 to 8 years
211,671   196,270 
Computer hardware and software
3 to 13 years
71,306 68,748 
Furniture and office equipment
5 to 7 years
5,692   5,236 
Construction in progress18,062   10,859 
Property, plant and equipment, gross364,713   339,205 
Less: accumulated depreciation and amortization(233,779)(214,787)
Property, plant and equipment, net$130,934   $124,418