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PENSION AND OTHER POST-RETIREMENT BENEFITS
 3 Months Ended
Jan. 27, 2019
Retirement Benefits [Abstract]  
PENSION AND OTHER POST-RETIREMENT BENEFITS PENSION AND OTHER POST-RETIREMENT BENEFITS
 
Net periodic benefit cost for pension and other post-retirement benefit plans consists of the following:
 
Pension Benefits
 
Post-retirement Benefits
 
Three Months Ended
 
Three Months Ended
(in thousands)
January 27,
2019
 
January 28,
2018
 
January 27,
2019
 
January 28,
2018
Service cost
$
6,510

 
$
7,903

 
$
174

 
$
320

Interest cost
15,097

 
14,049

 
3,165

 
2,832

Expected return on plan assets
(23,125
)
 
(24,770
)
 
—

 
—

Amortization of prior service cost
(698
)
 
(617
)
 
(669
)
 
(710
)
Recognized actuarial loss
3,701

 
4,539

 
—

 
44

Curtailment loss (gain)
2,825

 
—

 
(620
)
 
—

Net periodic cost
$
4,310

 
$
1,104

 
$
2,050

 
$
2,486


Non-service cost components of net pension and postretirement benefit cost are presented within interest and investment income on the Consolidated Statements of Operations.

Curtailments were recognized in the first quarter of fiscal 2019 due to the sale of the Fremont facility.