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v2.3.0.11

Retirement Plans (Tables) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2011 | Jun. 30, 2011
Retirement Plans [Abstract] |  |
Retirement Income Plan and Retirement Life Plan |
|  | Retirement Income Plan |  | Retirement Life Plan
|  | Quarter ended June 30, |  | Quarter ended June 30,
($ in thousands) |  | 2011 |  | 2010 |  | 2011 |  | 2010
Components of Net Periodic Benefit Cost: |  |  |  |  |  |  |  |
Service cost | $ | 2,174 |  | 1,945 |  | - |  | -
Interest cost |  | 3,155 |  | 3,090 |  | 76 |  | 79
Expected return on plan assets |  | (3,481) |  | (2,810) |  | - |  | -
Amortization of unrecognized prior service cost |  | 38 |  | 38 |  | - |  | -
Amortization of unrecognized net loss |  | 1,099 |  | 1,171 |  | 5 |  | 1
Net periodic cost | $ | 2,985 |  | 3,434 |  | 81 |  | 80
|  | Retirement Income Plan |  | Retirement Life Plan
|  | Six Months ended June 30, |  | Six Months ended June 30,
($ in thousands) |  | 2011 |  | 2010 |  | 2011 |  | 2010
Components of Net Periodic Benefit Cost: |  |  |  |  |  |  |  |
Service cost | $ | 4,347 |  | 3,942 |  | - |  | -
Interest cost |  | 6,310 |  | 6,015 |  | 153 |  | 158
Expected return on plan assets |  | (6,963) |  | (5,626) |  | - |  | -
Amortization of unrecognized prior service cost |  | 75 |  | 75 |  | - |  | -
Amortization of unrecognized net loss |  | 2,200 |  | 2,095 |  | 9 |  | 3
Net periodic cost | $ | 5,969 |  | 6,501 |  | 162 |  | 161
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 |  | - |  | -

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- Definition n/a + Details
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- Definition This schedule captures the weighted average assumptions used in calculating the net periodic benefit cost of defined benefit plans. + Details
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- Definition This element may be used to capture the entire disclosure for an employer that sponsors one or more defined benefit pension plans or one or more other defined benefit postretirement plans, of certain information, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5, 6, 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 158 -Paragraph 4, 7, 16, 20, 21 + Details
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