XML 44 R31.htm IDEA: XBRL DOCUMENT
v2.3.0.15

Retirement Plans (Tables) | 3 Months Ended | 9 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 |  | 4 |  | 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 |  | - |  | -

X
- Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (k) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfAssumptionsUsedTableTextBlock
Namespace Prefix: | us-gaap
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration