Retirement and Other Benefit Plans
 3 Months Ended
Apr. 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 cost (income) for the Company, including domestic and Canadian plans:
 
Pension Benefits
Other Postretirement Benefits
 
Thirteen Weeks Ended
Thirteen Weeks Ended
($ thousands)
April 29, 2017

April 30, 2016

April 29, 2017

April 30, 2016

Service cost
$
2,467

$
2,263

$
—

$
—

Interest cost
3,747

3,861

18

15

Expected return on assets
(6,880
)
(7,223
)
—

—

Amortization of:
 

 

 

 

Actuarial loss (gain)
1,152

38

(38
)
(55
)
Prior service income
(435
)
(460
)
—

—

Total net periodic benefit cost (income)
$
51

$
(1,521
)
$
(20
)
$
(40
)