Employee Retirement Benefits (Tables)

12 Months Ended

Dec. 31, 2013

Employee Retirement Benefits [Abstract]

Employee post-retirement benefits

The following table summarizes the changes in the balance sheet amounts, which include the entire benefit obligation and assets associated with our post-retirement benefit plans as of December 31, 2013 and 2012, respectively.

(Dollars in thousands)	2013			2012
Change in benefit obligation
Benefit obligation at beginning of year	$	11,044		$	17,326
Service cost		268			599
Interest cost		480			797
Amendments		-			(7,306	)
Actuarial loss		(776	)		(918	)
Benefits paid		(287	)		(488	)
Valuation adjustment		-			1,034
Benefit obligation at end of year	$	10,729		$	11,044

Net Periodic Benefit Cost

The Accumulated Post-Retirement Benefit Obligation ("APBO") is the actuarial present value of the benefits attributed to employee service rendered to a particular date. The decrease in APBO during 2012 is substantially due to a significant plan design change reflected in the December 31, 2012 valuation.

	As of December 31
(Dollars in thousands)	2013			2012			2011
Components of net periodic benefit cost
Service cost	$	268		$	599		$	509
Interest cost		480			797			799
Expected return on plan assets		-			-			-
Amortization of transition obligation		-			60			60
Amortization of prior service credit		(944	)		(76	)		(55	)
Recognized net actuarial loss		479			630			429
Net periodic benefit cost	$	283		$	2,010		$	1,742
Discount rate used to determine benefit obligation
As of December 31:		5.0	%		4.4	%		4.4	%

Schedule of health care cost trend rates

Health Care Trend Rates for the Year Ending December 31, 2013
Year	Pre-Medicare	Post-Medicare
2014	8.00%	n/a
2015	7.50%	n/a
2016	7.00%	n/a
2017	6.50%	n/a
2018	6.00%	n/a
2019	5.50%	n/a
2020	5.00%	n/a
Ultimate	4.50%	n/a
Ultimate Reached in Year	2021	n/a

Schedule of effect of one-percentage-point change in assumed health Care cost trend rates

(Dollars in thousands)
Effect of 1% Increase and 1% Decrease in Trend Rate	1% Increase				1% Decrease
Accumulated post-retirement benefit obligation as of December 31, 2013
Dollar change		$	302			$	(264	)
Percentage change			3.01	%			(2.64	)%
Service cost and interest cost
Dollar change		$	30			$	(26	)