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Retirement Plans (Table)

9 Months Ended

Sep. 30, 2012

Compensation and Retirement Disclosure [Abstract]

Retirement Income Plan and Retirement Life Plan

		Retirement Income Plan Quarter ended September 30,							Retirement Life Plan Quarter ended September 30,
($ in thousands)		2012				2011			2012			2011
Components of Net Periodic Benefit Cost:
Service cost		$	2,154			1,894			—			—
Interest cost		3,230				3,087			73			77
Expected return on plan assets		(3,547		)		(3,482	)		—			—
Amortization of unrecognized prior service cost		38				38			—			—
Amortization of unrecognized net loss		1,383				1,039			8			4
Net periodic cost		$	3,258			2,576			81			81

		Retirement Income Plan Nine Months ended September 30,							Retirement Life Plan Nine Months ended September 30,
($ in thousands)		2012				2011			2012			2011
Components of Net Periodic Benefit Cost:
Service cost		$	6,462			6,241			—			—
Interest cost		9,690				9,397			221			230
Expected return on plan assets		(10,641		)		(10,445	)		—			—
Amortization of unrecognized prior service cost		113				113			—			—
Amortization of unrecognized net loss		4,149				3,239			23			13
Net periodic cost		$	9,773			8,545			244			243

Weighted-Average Expense Assumptions

Weighted-Average Expense Assumptions for the years ended December 31:
Discount rate		5.16	%		5.55		5.16	%		5.55
Expected return on plan assets		7.75	%		8.00		—			—
Rate of compensation increase		4.00	%		4.00		—			—

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- 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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (k)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

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- 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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (h)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

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