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Benefit Plans (Tables)
6 Months Ended
Jul. 30, 2016
Compensation and Retirement Disclosure [Abstract]  
Schedule of components of net periodic benefit costs
 
The components of net periodic benefit costs are as follows (in thousands): 
 
 
Three Months Ended
 
Six Months Ended
 
 
July 30,
2016
 
August 1,
2015
 
July 30,
2016
 
August 1,
2015
Components of net periodic benefit costs:
 
 

 
 

 
 

 
 

Service cost
 
$
984

 
$
983

 
$
1,967

 
$
1,966

Interest cost
 
1,919

 
1,684

 
3,839

 
3,368

Net actuarial loss
 
301

 
924

 
602

 
1,848

Net periodic benefit costs
 
$
3,204

 
$
3,591

 
$
6,408

 
$
7,182

 Net periodic benefit costs are included in selling, general and administrative expenses.