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Pension and Postretirement Plans (Tables)
 3 Months Ended
Mar. 31, 2014
Pension Plan [Member]
  
Schedule of Net Benefit Costs
Defined Benefit Plans. The total (benefit) cost arising from the Company’s defined benefit pension plans, including a portion included in discontinued operations, consists of the following components:
  
Three Months Ended March 31
(in thousands)
2014
 
2013
Service cost
$
7,537

 
$
13,365

Interest cost
13,082

 
14,291

Expected return on assets
(30,263
)
 
(26,322
)
Amortization of prior service cost
82

 
909

Recognized actuarial (gain) loss
(7,038
)
 
2,147

Net Periodic (Benefit) Cost
(16,600
)
 
4,390

Early retirement programs expense
4,490

 
14,258

Total (Benefit) Cost
$
(12,110
)
 
$
18,648
Schedule of Allocation of Plan Assets
The assets of the Company’s pension plan were allocated as follows:
  
As of
  
March 31,
2014
 
December 31,
2013
  
 
U.S. equities
59
%
 
58
%
U.S. fixed income
13
%
 
12
%
International equities
28
%
 
30
%
  
100
%
 
100
%
Supplemental Executive Retirement Plan (SERP) [Member]
  
Schedule of Net Benefit Costs
The total cost arising from the Company’s Supplemental Executive Retirement Plan (SERP), including a portion included in discontinued operations, consists of the following components:
  
Three Months Ended March 31
(in thousands)
2014
 
2013
Service cost
$
373

 
$
429

Interest cost
1,085

 
1,023

Amortization of prior service cost
12

 
14

Recognized actuarial loss
375

 
711

Net Periodic Cost
$
1,845

 
$
2,177
Other Postretirement Benefit Plan, Defined Benefit [Member]
  
Schedule of Net Benefit Costs
Other Postretirement Plans. The total cost (benefit) arising from the Company’s other postretirement plans, including a portion included in discontinued operations, consists of the following components:
  
Three Months Ended March 31
(in thousands)
2014
 
2013
Service cost
$
375

 
$
727

Interest cost
362

 
510

Amortization of prior service credit
(196
)
 
(1,360
)
Recognized actuarial gain
(519
)
 
(541
)
Net Periodic Cost (Benefit)
22

 
(664
)
Settlement gain
—

 
(3,471
)
Total Cost (Benefit)
$
22

 
$
(4,135
)