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PENSION AND OTHER POST-RETIREMENT BENEFITS
 9 Months Ended
Jul. 28, 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
 
Three Months Ended
 
Nine Months Ended
(in thousands)
July 28,
2019
 
July 29,
2018
 
July 28,
2019
 
July 29,
2018
Service cost
$
6,510

 
$
7,903

 
$
19,531

 
$
23,709

Interest cost
15,097

 
14,045

 
45,289

 
42,144

Expected return on plan assets
(23,123
)
 
(24,776
)
 
(69,369
)
 
(74,317
)
Amortization of prior service cost
(699
)
 
(617
)
 
(2,096
)
 
(1,851
)
Recognized actuarial loss
3,702

 
4,548

 
11,104

 
13,626

Curtailment loss (gain)
—

 
—

 
2,825

 
—

Net periodic cost
$
1,487

 
$
1,103

 
$
7,284

 
$
3,311


 
Post-retirement Benefits
 
Three Months Ended
 
Nine Months Ended
(in thousands)
July 28,
2019
 
July 29,
2018
 
July 28,
2019
 
July 29,
2018
Service cost
$
173

 
$
98

 
$
520

 
$
739

Interest cost
3,007

 
2,692

 
9,181

 
8,356

Amortization of prior service cost
(669
)
 
(812
)
 
(2,007
)
 
(2,233
)
Recognized actuarial loss
—

 
44

 
—

 
133

Curtailment loss (gain)
—

 
—

 
(620
)
 
—

Net periodic cost
$
2,511

 
$
2,022

 
$
7,074

 
$
6,995


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.