Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2012

Retirement Plans [Abstract]

Change in Benefit Obligation

		Pension		Postretirement		Pension		Postretirement
		Plan		Plan		Plan		Plan
		2012		2012		2011		2011
		($ in Thousands)
Change in Fair Value of Plan Assets
Fair value of plan assets at beginning of year		$	173,422	$	-	$	159,791	$	-
Actual return on plan assets			20,781		-		(2,481)		-
Employer contributions			40,000		495		26,000		502
Gross benefits paid			(9,777)		(495)		(9,888)		(502)
	Fair value of plan assets at end of year	$	224,426	$	-	$	173,422	$	-
Change in Benefit Obligation
Net benefit obligation at beginning of year		$	136,846	$	3,969	$	129,114	$	4,150
Service cost			10,287		-		9,898		-
Interest cost			6,547		182		6,414		198
Curtailments, Settlements, Special Termination Benefits			42		-		-		-
Actuarial loss			15,803		279		1,308		123
Gross benefits paid			(9,777)		(495)		(9,888)		(502)
	Net benefit obligation at end of year	$	159,748	$	3,935	$	136,846	$	3,969
Funded (unfunded) status		$	64,678	$	(3,935)	$	36,576	$	(3,969)
Noncurrent assets		$	67,878	$	-	$	39,802	$	-
Current liabilities			-		(458)		-		(495)
Noncurrent liabilities			(3,200)		(3,477)		(3,226)		(3,474)
Asset (Liability) Recognized in the Consolidated Balance Sheets		$	64,678	$	(3,935)	$	36,576	$	(3,969)

AOCI Components

Amounts recognized in accumulated other comprehensive income (loss), net of tax, as of December 31, 2012 and 2011 follow.
		Pension		Postretirement		Pension		Postretirement
		Plan		Plan		Plan		Plan
		2012		2012		2011		2011
		($ in Thousands)
Prior service cost		$	232	$	-	$	274	$	103
Net actuarial (gain) loss			37,240		35		32,932		(135)
Amount not yet recognized in net periodic benefit cost, but
	recognized in accumulated other comprehensive income	$	37,472	$	35	$	33,206	$	(32)

Changes in OCI

Other changes in plan assets and benefit obligations recognized in other comprehensive income (“OCI”), net of tax, in 2012 and 2011 were as follows.
		Pension Plan		Postretirement Plan		Pension Plan		Postretirement Plan
		2012		2012		2011		2011
		($ in Thousands)
Net loss		$	(9,735)	$	(279)	$	(16,711)	$	(123)
Amortization of prior service cost			72		170		72		395
Amortization of actuarial gain			3,073		-		2,024		-
Income tax (expense) benefit			2,324		42		5,780		(106)
	Total Recognized in OCI	$	(4,266)	$	(67)	$	(8,835)	$	166

Net period benefit cost for the pension and postretirement plans

The components of net periodic benefit cost for the Pension and Postretirement Plans for 2012, 2011, and 2010 were as follows.
		Pension		Postretirement		Pension		Postretirement		Pension		Postretirement
		Plan		Plan		Plan		Plan		Plan		Plan
		2012		2012		2011		2011		2010		2010
						($ in Thousands)
Service cost		$	10,287	$	-	$	9,898	$	-	$	9,622	$	-
Interest cost			6,547		182		6,414		198		6,377		227
Expected return on plan assets			(14,713)		-		(12,896)		-		(12,152)		-
Amortization of:
	Prior service cost		72		170		72		395		72		395
	Actuarial (gain) loss		2,708		-		2,024		-		1,601		(3)
Settlement charge			408		-		-		-		-		-
Total net pension cost		$	5,309	$	352	$	5,512	$	593	$	5,520	$	619

Weighted Average Benefit Assumptions

		Pension Plan		Postretirement Plan		Pension Plan		Postretirement Plan
		2012		2012		2011		2011
Weighted average assumptions used to determine
	benefit obligations:
Discount rate		4.00	%	4.00	%	4.90	%	4.90	%
Rate of increase in compensation levels		4.00		N/A		5.00		N/A
Weighted average assumptions used to determine net
	periodic benefit costs:
Discount rate		4.90	%	4.90	%	5.10	%	5.10	%
Rate of increase in compensation levels		4.00		N/A		5.00		N/A
Expected long-term rate of return on plan assets		7.50		N/A		7.75		N/A

Plan Asset Allocation Percentages

Asset Category		2012		2011
Equity securities		66	%	65	%
Debt securities		30		34
Other		4		1
	Total	100	%	100	%

Pension Plan Investments

				Fair Value Measurements Using
		December 31, 2012		Level 1		Level 2		Level 3
		($ in Thousands)
Pension Plan Investments:
Money market account		$	9,958	$	9,958	$	-	$	-
Mutual funds			124,620		124,620		-		-
Common /collective trust funds			89,848		-		89,848		-
	Total Pension Plan Investments	$	224,426	$	134,578	$	89,848	$	-
				Fair Value Measurements Using
		December 31, 2011		Level 1		Level 2		Level 3
		($ in Thousands)
Pension Plan Investments:
Money market account		$	1,690	$	1,690	$	-	$	-
Mutual funds			92,026		92,026		-		-
Common /collective trust funds			79,706		-		79,706		-
	Total Pension Plan Investments	$	173,422	$	93,716	$	79,706	$	$ -

Expected Benefit Payments

	Pension Plan		Postretirement Plan
	($ in Thousands)
Estimated future benefit payments:
2013	$	13,176	$	458
2014		12,109		393
2015		12,939		355
2016		12,611		308
2017		12,688		278
2018-2022		67,831		1,232

One Percentage Point Change in Assumed Health Care Cost

	2012				2011
	100 bp Increase		100 bp Decrease		100 bp Increase		100 bp Decrease
	($ in Thousands)
Effect on total of service and interest cost	$	15	$	(13)	$	15	$	(13)
Effect on postretirement benefit obligation	$	364	$	(315)	$	305	$	(266)