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Benefit Plans (Tables)
6 Months Ended
Aug. 01, 2020
Retirement Benefits [Abstract]  
Schedule of components of net periodic benefit costs
The components of net periodic benefit costs are as follows (in thousands): 
 Three Months EndedSix Months Ended
 August 1,
2020
August 3,
2019
August 1,
2020
August 3,
2019
Components of net periodic benefit costs:    
Service cost$1,090 $905 $2,180 $1,810 
Interest cost1,536 1,917 3,072 3,834 
Net actuarial loss568  1,137  
Net periodic benefit costs$3,194 $2,822 $6,389 $5,644 
The service cost component of net periodic benefit costs is included in selling, general and administrative expenses, and the interest cost and net actuarial loss components are included in other expense.