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Retirement Plans (Tables)
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2011
Retirement Plans [Abstract]  
Retirement Income Plan and Retirement Life Plan

 

 

Retirement Income Plan

 

Retirement Life Plan

 

 

Quarter ended September 30,

 

Quarter ended September 30,

($ in thousands)

 

2011

 

2010

 

2011

 

2010

Components of Net Periodic Benefit Cost:

 

 

 

 

 

 

 

 

    Service cost

$

1,894 

 

1,842 

 

 

-

    Interest cost

 

3,087 

 

2,950 

 

77 

 

80

    Expected return on plan assets

 

(3,482)

 

(2,811)

 

 

-

    Amortization of unrecognized prior service cost

 

38 

 

38 

 

 

-

    Amortization of unrecognized net loss

 

1,039 

 

1,016 

 

 

1

    Net periodic cost

$

2,576 

 

3,035 

 

81 

 

81

 

 

 

 

 

 

 

 

 

 

 

Retirement Income Plan

 

Retirement Life Plan

 

 

Nine Months ended September 30,

 

Nine Months ended September 30,

($ in thousands)

 

2011

 

2010

 

2011

 

2010

Components of Net Periodic Benefit Cost:

 

 

 

 

 

 

 

 

   Service cost

$

6,241 

 

5,784 

 

-  

 

-

   Interest cost

 

9,397 

 

8,965 

 

230 

 

238

   Expected return on plan assets

 

(10,445)

 

(8,437)

 

 

-

   Amortization of unrecognized prior service cost

 

113 

 

113 

 

 

-

   Amortization of unrecognized net loss

 

3,239 

 

3,111 

 

13 

 

4

   Net periodic cost

$

8,545 

 

9,536 

 

243 

 

242

Weighted-Average Expense Assumptions 

Weighted-Average Expense Assumptions

 

 

 

 

 

 

 

 

for the years ended December 31:

 

 

 

 

 

 

 

 

    Discount rate

 

5.55

%

5.93

 

5.55

%

5.93

    Expected return on plan assets

 

8.00

 

8.00

 

-

 

-

    Rate of compensation increase

 

4.00

 

4.00

 

-

 

-