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Retirement Plans and Other Benefits (Tables)
 6 Months Ended
Jun. 30, 2011
Retirement Plans and Other Benefits  
Net periodic benefit costs and the portion of these costs charged to expense

 

 

 

Pension Benefits

 

Other Benefits

 

 

 

Three Months
Ended June 30,

 

Six Months
Ended June 30,

 

Three Months
Ended June 30,

 

Six Months
Ended June 30,

 

 

 

2011

 

2010

 

2011

 

2010

 

2011

 

2010

 

2011

 

2010

 

Service cost - benefits earned during the period

 

$

13

 

$

13

 

$

29

 

$

28

 

$

5

 

$

5

 

$

11

 

$

10

 

Interest cost on benefit obligation

 

31

 

30

 

62

 

61

 

12

 

10

 

23

 

21

 

Expected return on plan assets

 

(33

)

(31

)

(67

)

(62

)

(11

)

(10

)

(21

)

(20

)

Amortization of:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Transition obligation

 

—

 

—

 

—

 

—

 

—

 

(1

)

—

 

—

 

Prior service cost

 

—

 

—

 

1

 

1

 

—

 

—

 

—

 

—

 

Net actuarial loss

 

7

 

4

 

13

 

10

 

4

 

2

 

8

 

5

 

Net periodic benefit cost

 

$

18

 

$

16

 

$

38

 

$

38

 

$

10

 

$

6

 

$

21

 

$

16

 

Portion of cost charged to expense

 

$

7

 

$

8

 

$

15

 

$

19

 

$

4

 

$

3

 

$

8

 

$

8