Benefit Plans (Tables)
 3 Months Ended
May 04, 2019
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 Ended
 
 
May 4,
2019
 
May 5,
2018
Components of net periodic benefit costs:
 
 

 
 

Service cost
 
$
905

 
$
922

Interest cost
 
1,917

 
1,783

Net actuarial loss
 
—

 
132

Net periodic benefit costs
 
$
2,822

 
$
2,837

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.