Employee Benefits (Tables)

3 Months Ended

Mar. 31, 2014

Compensation and Retirement Disclosure [Abstract]

Components of Net Periodic Pension Cost and Other Changes in Plan Assets and Benefit

The following table summarizes the components of net periodic pension cost and other changes in plan assets and benefit obligation recognized in other comprehensive income (loss) for the periods presented:

	Three Months Ended March 31,
(dollars in thousands)	2014			2013
Components of Net Periodic Pension Cost
Service cost—benefits earned during the period	$	631		$	708
Interest cost on projected benefit obligation	1,106			996
Expected return on plan assets	(1,735		)	(1,565		)
Amortization of prior service cost (credit)	(35		)	(34		)
Recognized net actuarial loss	209			588
Net Periodic Pension Expense	$	176		$	693