Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2014

Retirement Plans [Abstract]

Change in Benefit Obligation

		Pension		Postretirement		Pension		Postretirement
		Plan		Plan		Plan		Plan
		2014		2014		2013		2013
		($ in Thousands)
Change in Fair Value of Plan Assets
Fair value of plan assets at beginning of year		$	282,000	$	-	$	224,426	$	-
Actual return on plan assets			15,255		-		42,400		-
Employer contributions			21,000		343		28,000		351
Gross benefits paid			(14,759)		(343)		(12,826)		(351)
	Fair value of plan assets at end of year *	$	303,496	$	-	$	282,000	$	-
Change in Benefit Obligation
Net benefit obligation at beginning of year		$	154,624	$	3,288	$	159,748	$	3,935
Service cost			11,058		-		12,078		-
Interest cost			7,132		150		6,237		142
Actuarial (gain) loss			13,278		483		(10,613)		(438)
Gross benefits paid			(14,759)		(343)		(12,826)		(351)
	Net benefit obligation at end of year *	$	171,333	$	3,578	$	154,624	$	3,288
Funded (unfunded) status		$	132,163	$	(3,578)	$	127,376	$	(3,288)
Noncurrent assets		$	132,163	$	-	$	127,376	$	-
Current liabilities			-		(330)		-		(343)
Noncurrent liabilities			-		(3,248)		-		(2,945)
Asset (Liability) Recognized in the Consolidated Balance Sheets		$	132,163	$	(3,578)	$	127,376	$	(3,288)
* The fair value of the plan assets represented 177% and 182% of the net benefit obligation of the pension plan at December 31, 2014 and 2013, respectively.

AOCI Components

Amounts recognized in accumulated other comprehensive income (loss), net of tax, as of December 31, 2014 and 2013 follow.
		Pension		Postretirement		Pension		Postretirement
		Plan		Plan		Plan		Plan
		2014		2014		2013		2013
		($ in Thousands)
Prior service cost		$	153	$	-	$	188	$	-
Net actuarial (gain) loss			23,124		84		12,894		(235)
Amount not yet recognized in net periodic benefit cost, but
	recognized in accumulated other comprehensive income	$	23,277	$	84	$	13,082	$	(235)

Changes in OCI

Other changes in plan assets and benefit obligations recognized in other comprehensive income (“OCI”), net of tax, in 2014 and 2013 were as follows.
		Pension Plan		Postretirement Plan		Pension Plan		Postretirement Plan
		2014		2014		2013		2013
		($ in Thousands)
Net gain (loss)		$	(17,945)	$	(483)	$	35,366	$	438
Amortization of prior service cost			58		-		72		-
Amortization of actuarial gain (loss)			1,384		(35)		4,344		-
Income tax (expense) benefit			6,308		199		(15,394)		(168)
	Total Recognized in OCI	$	(10,195)	$	(319)	$	24,388	$	270

Net period benefit cost for the pension and postretirement plans

The components of net periodic benefit cost for the Pension and Postretirement Plans for 2014, 2013, and 2012 were as follows.
		Pension		Postretirement		Pension		Postretirement		Pension		Postretirement
		Plan		Plan		Plan		Plan		Plan		Plan
		2014		2014		2013		2013		2012		2012
						($ in Thousands)
Service cost		$	11,058	$	-	$	12,078	$	-	$	10,287	$	-
Interest cost			7,132		150		6,237		142		6,547		182
Expected return on plan assets			(19,922)		-		(17,647)		-		(14,713)		-
Amortization of:
	Prior service cost		58		-		72		-		72		170
	Actuarial (gain) loss		1,384		(35)		4,344		-		2,708		-
Settlement charge			-		-		-		-		408		-
Total net pension cost		$	(290)	$	115	$	5,084	$	142	$	5,309	$	352

Weighted Average Benefit Assumptions

		Pension Plan		Postretirement Plan		Pension Plan		Postretirement Plan
		2014		2014		2013		2013
Weighted average assumptions used to determine
	benefit obligations:
Discount rate		4.00	%	4.00	%	4.80	%	4.80	%
Rate of increase in compensation levels		4.00		N/A		4.00		N/A
Weighted average assumptions used to determine net
	periodic benefit costs:
Discount rate		4.80	%	4.80	%	4.00	%	4.00	%
Rate of increase in compensation levels		4.00		N/A		4.00		N/A
Expected long-term rate of return on plan assets		7.50		N/A		7.50		N/A

Plan Asset Allocation Percentages

Asset Category		2014		2013
Equity securities		64	%	70	%
Fixed income securities		35		27
Other		1		3
	Total	100	%	100	%

Pension Plan Investments

				Fair Value Measurements Using
		December 31, 2014		Level 1		Level 2		Level 3
		($ in Thousands)
Pension Plan Investments:
Money market account		$	2,868	$	2,868	$	-	$	-
Mutual funds			185,483		185,483		-		-
Common /collective trust funds			115,145		-		115,145		-
	Total Pension Plan Investments	$	303,496	$	188,351	$	115,145	$	-
				Fair Value Measurements Using
		December 31, 2013		Level 1		Level 2		Level 3
		($ in Thousands)
Pension Plan Investments:
Money market account		$	7,127	$	7,127	$	-	$	-
Mutual funds			187,958		187,958		-		-
Common /collective trust funds			86,915		-		86,915		-
	Total Pension Plan Investments	$	282,000	$	195,085	$	86,915	$	$ -

Expected Benefit Payments

	Pension Plan		Postretirement Plan
	($ in Thousands)
Estimated future benefit payments:
2015	$	13,842	$	330
2016		13,426		321
2017		13,463		291
2018		13,556		270
2019		13,305		266
2020-2024		75,331		1,269

One Percentage Point Change in Assumed Health Care Cost

	2014				2013
	100 bp Increase		100 bp Decrease		100 bp Increase		100 bp Decrease
	($ in Thousands)
Effect on total of service and interest cost	$	13	$	(11)	$	14	$	(12)
Effect on postretirement benefit obligation	$	316	$	(277)	$	290	$	(255)