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Benefit Plans (Tables)
 3 Months Ended
Mar. 28, 2020
Retirement Benefits [Abstract]  
Components of Net Periodic Benefit Cost (Income) The components of net periodic benefit cost (income) are as follows:

 
 
For the Quarter Ended
(In thousands) 
 
March 28, 2020
 
March 30, 2019
 
 
 
 
 
Pension benefits:
 
 
 
 
Service cost
 
$
—

 
$
—

Interest cost
 
858

 
1,467

Expected return on plan assets
 
(1,495
)
 
(2,076
)
Amortization of net loss
 
460

 
530

 
 
 
 
 
Net periodic benefit income
 
$
(177
)
 
$
(79
)
 
 
 
 
 
Other benefits:
 
 

 
 

Service cost
 
$
61

 
$
64

Interest cost
 
109

 
153

Amortization of prior service credit
 
(226
)
 
(226
)
Amortization of net gain
 
(53
)
 
(8
)
 
 
 
 
 
Net periodic benefit income
 
$
(109
)
 
$
(17
)