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Defined Benefit Plans (Tables)
6 Months Ended
Jul. 30, 2016
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]  
Components of net periodic defined benefit pension (credit) cost
The components of net periodic defined benefit pension (credit) cost for the three and six months ended July 30, 2016 and August 1, 2015 related to the SERP are as follows (in thousands):    
 
Three Months Ended
 
Six Months Ended
 
Jul 30, 2016
 
Aug 1, 2015
 
Jul 30, 2016
 
Aug 1, 2015
Interest cost
$
460

 
$
495

 
$
920

 
$
991

Net amortization of unrecognized prior service credit

 
(39
)
 

 
(97
)
Net amortization of actuarial losses
38

 
290

 
77

 
718

Curtailment gain

 
(1,651
)
 

 
(1,651
)
Net periodic defined benefit pension (credit) cost
$
498

 
$
(905
)
 
$
997

 
$
(39
)