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PENSION AND OTHER POST-RETIREMENT BENEFITS
 6 Months Ended
Apr. 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
 
Six Months Ended
(in thousands)
April 28,
2019
 
April 29,
2018
 
April 28,
2019
 
April 29,
2018
Service cost
$
6,511

 
$
7,903

 
$
13,021

 
$
15,806

Interest cost
15,095

 
14,049

 
30,192

 
28,098

Expected return on plan assets
(23,121
)
 
(24,771
)
 
(46,246
)
 
(49,541
)
Amortization of prior service cost
(699
)
 
(617
)
 
(1,397
)
 
(1,234
)
Recognized actuarial loss
3,701

 
4,540

 
7,402

 
9,079

Curtailment loss (gain)
—

 
—

 
2,825

 
—

Net periodic cost
$
1,487

 
$
1,104

 
$
5,797

 
$
2,208


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

 
$
321

 
$
347

 
$
641

Interest cost
3,009

 
2,832

 
6,174

 
5,664

Amortization of prior service cost
(669
)
 
(711
)
 
(1,338
)
 
(1,421
)
Recognized actuarial loss
—

 
45

 
—

 
89

Curtailment loss (gain)
—

 
—

 
(620
)
 
—

Net periodic cost
$
2,513

 
$
2,487

 
$
4,563

 
$
4,973


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.