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Retirement and Other Benefit Plans
 6 Months Ended
Jul. 29, 2017
Compensation and Retirement Disclosure [Abstract]  
Retirement and Other Benefit Plans
Note 11
Retirement and Other Benefit Plans
 
The following table sets forth the components of net periodic benefit income for the Company, including domestic and Canadian plans:
 
Pension Benefits
Other Postretirement Benefits
 
Thirteen Weeks Ended
Thirteen Weeks Ended
($ thousands)
July 29, 2017

July 30, 2016

July 29, 2017

July 30, 2016

Service cost
$
2,383

$
1,904

$
—

$
—

Interest cost
3,727

3,810

16

15

Expected return on assets
(6,913
)
(7,252
)
—

—

Amortization of:
 

 

 

 

Actuarial loss (gain)
996

39

(35
)
(55
)
Prior service income
(461
)
(461
)
—

—

Settlement cost
—

250

—

—

Total net periodic benefit income
$
(268
)
$
(1,710
)
$
(19
)
$
(40
)
 
 
 
 
 
 
Pension Benefits
Other Postretirement Benefits
 
Twenty-six Weeks Ended
Twenty-six Weeks Ended
($ thousands)
July 29, 2017

July 30, 2016

July 29, 2017

July 30, 2016

Service cost
$
4,850

$
4,167

$
—

$
—

Interest cost
7,474

7,671

34

30

Expected return on assets
(13,793
)
(14,475
)
—

—

Amortization of:
 
 
 
 
Actuarial loss (gain)
2,148

77

(73
)
(110
)
Prior service income
(896
)
(921
)
—

—

Settlement cost
—

250

—

—

Total net periodic benefit income
$
(217
)
$
(3,231
)
$
(39
)
$
(80
)