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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		-		-

X

- Definition

n/a

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X

- 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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X

- 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

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