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Retiree Benefits
 6 Months Ended
Apr. 26, 2013
Compensation and Retirement Disclosure [Abstract]  
Retiree Benefits
Retiree Benefits
The components of the net periodic pension and other postretirement benefits expense recognized are as follows:
 
 
Pension Benefits
 
Postretirement Benefits
 
Quarter Ended
 
Quarter Ended
(in thousands)
April 26,
2013
 
April 27,
2012
 
April 26,
2013
 
April 27,
2012
Service cost
$
2,848

 
$
5,062

 
$
187

 
$
250

Interest cost
19,536

 
20,056

 
282

 
363

Expected return on assets
(25,604
)
 
(24,777
)
 
(102
)
 
(90
)
Amortization of:
 
 
 
 
 
 
 
Prior service cost
152

 
292

 
(7
)
 
13

Actuarial loss (gain)
4,668

 
4,749

 
(186
)
 
(299
)
Curtailment loss
—

 
1,077

 
—

 
—

Net periodic benefit cost
$
1,600

 
$
6,459

 
$
174

 
$
237


 
Pension Benefits
 
Postretirement Benefits
 
Six Months Ended
 
Six Months Ended
(in thousands)
April 26,
2013
 
April 27,
2012
 
April 26,
2013
 
April 27,
2012
Service cost
$
5,695

 
$
10,475

 
$
542

 
$
500

Interest cost
39,047

 
41,243

 
584

 
726

Expected return on assets
(51,208
)
 
(49,200
)
 
(214
)
 
(180
)
Amortization of:
 
 
 
 
 
 
 
Prior service cost
305

 
653

 
35

 
26

Actuarial loss (gain)
14,529

 
16,832

 
(417
)
 
(598
)
Curtailment loss
—

 
1,077

 
—

 
—

Net periodic benefit cost
$
8,368

 
$
21,080

 
$
530

 
$
474



The actuarial loss (gain) arises from differences in estimates and actual experiences for certain assumptions including changes in discount rate and expected return on assets. Through April 26, 2013, we have contributed $92.2 million to our defined benefit employee pension plans in fiscal 2013 and we plan to contribute approximately $180.0 million to $190.0 million for the full fiscal year.
On February 28, 2012 a modification was made to the Joy Global Pension Plan, freezing benefits for all salaried and non-bargained hourly participants effective May 1, 2012. We recorded a curtailment charge of $1.1 million in the second quarter of fiscal 2012 in conjunction with the freeze.