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Employee Benefit Plans
 6 Months Ended
May 27, 2012
Compensation and Retirement Disclosure [Abstract]  
EMPLOYEE BENEFIT PLANS
EMPLOYEE BENEFIT PLANS
The following table summarizes the components of net periodic benefit cost (income) and the changes recognized in “Accumulated other comprehensive loss” for the Company’s defined benefit pension plans and postretirement benefit plans:
 
 
Pension Benefits
 
Postretirement Benefits
 
Three Months Ended
 
Three Months Ended
 
May 27,
2012
 
May 29,
2011
 
May 27,
2012
 
May 29,
2011
 
(Dollars in thousands)
Net periodic benefit cost (income):
 
 
 
 
 
 
 
Service cost
$
2,247

 
$
2,604

 
$
100

 
$
119

Interest cost
14,435

 
15,126

 
1,658

 
1,907

Expected return on plan assets
(13,108
)
 
(13,057
)
 
—

 
—

Amortization of prior service (benefit) cost
(21
)
 
20

 
(4,089
)
 
(7,237
)
Amortization of actuarial loss
3,161

 
4,304

 
1,289

 
1,257

Curtailment (gain) loss(1)
(222
)
 
3,071

 
—

 
—

Net settlement loss
310

 
705

 
—

 
—

Net periodic benefit cost (income)
6,802

 
12,773

 
(1,042
)
 
(3,954
)
Changes in accumulated other comprehensive loss:
 
 
 
 
 
 
 
Actuarial loss (gain)(1)
74

 
(32,415
)
 
—

 
—

Amortization of prior service benefit (cost)
21

 
(20
)
 
4,089

 
7,237

Amortization of actuarial loss
(3,161
)
 
(4,304
)
 
(1,289
)
 
(1,257
)
Curtailment loss(1)
—

 
(3,071
)
 
—

 
—

Net settlement loss
(145
)
 
(360
)
 
—

 
—

Total recognized in accumulated other comprehensive loss
(3,211
)
 
(40,170
)
 
2,800

 
5,980

Total recognized in net periodic benefit cost (income) and accumulated other comprehensive loss
$
3,591

 
$
(27,397
)
 
$
1,758

 
$
2,026


 
Pension Benefits
 
Postretirement Benefits
 
Six Months Ended
 
Six Months Ended
 
May 27,
2012
 
May 29,
2011
 
May 27,
2012
 
May 29,
2011
 
(Dollars in thousands)
Net periodic benefit cost (income):
 
 
 
 
 
 
 
Service cost
$
4,494

 
$
5,187

 
$
199

 
$
239

Interest cost
28,848

 
30,154

 
3,317

 
3,814

Expected return on plan assets
(26,117
)
 
(25,955
)
 
—

 
—

Amortization of prior service (benefit) cost
(41
)
 
85

 
(8,178
)
 
(14,473
)
Amortization of actuarial loss
6,303

 
11,034

 
2,578

 
2,513

Curtailment (gain) loss(1)
(995
)
 
3,055

 
—

 
—

Net settlement loss
417

 
716

 
—

 
—

Net periodic benefit cost (income)
12,909

 
24,276

 
(2,084
)
 
(7,907
)
Changes in accumulated other comprehensive loss:
 
 
 
 
 
 
 
Actuarial loss (gain)(1)
70

 
(32,415
)
 
—

 
—

Amortization of prior service benefit (cost)
41

 
(85
)
 
8,178

 
14,473

Amortization of actuarial loss
(6,303
)
 
(11,034
)
 
(2,578
)
 
(2,513
)
Curtailment loss(1)
(1
)
 
(3,071
)
 
—

 
—

Net settlement loss
(196
)
 
(338
)
 
—

 
—

Total recognized in accumulated other comprehensive loss
(6,389
)
 
(46,943
)
 
5,600

 
11,960

Total recognized in net periodic benefit cost (income) and accumulated other comprehensive loss
$
6,520

 
$
(22,667
)
 
$
3,516

 
$
4,053

_____________
 
(1)
On April 15, 2011, participants in the Company's U.S. pension plans ceased earning benefits. This event triggered a remeasurement of the U.S. pension plans resulting in a $32.0 million change in the plans' funded status and a $2.9 million curtailment loss attributable to the accelerated recognition of prior service cost.