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Defined Benefit Pension Plans and Other Benefit Plans (Tables)
 3 Months Ended
May 04, 2019
Retirement Benefits [Abstract]  
Components of net periodic benefit cost
The following table summarizes the components of net periodic benefit cost related to the Company's pension and postretirement health care and life insurance plans:

Components of Net Periodic Benefit Cost
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pension Benefits
 
Other Benefits
 
Three Months Ended
 
Three Months Ended
In Thousands
May 4, 2019

 
May 5, 2018

 
May 4, 2019

 
May 5, 2018

Service cost
$
162

 
$
113

 
$
22

 
$
155

 
 
 
 
 
 
 
 
Interest cost
$
758

 
$
754

 
$
38

 
$
68

Expected return on plan assets
(731
)
 
(1,051
)
 
—

 
—

Amortization:
 
 
 
 
 
 
 
Prior service cost
—

 
—

 
(230
)
 
—

    Amortization of losses
74

 
189

 
5

 
32

Total other components of net periodic benefit cost
$
101

 
$
(108
)
 
$
(187
)
 
$
100

 
 
 
 
 
 
 
 
Net Periodic Benefit Cost
$
263

 
$
5

 
$
(165
)
 
$
255