Employee Benefits (Tables)

6 Months Ended

Jun. 30, 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 for the periods presented:

	Three Months Ended June 30,						Six Months Ended June 30,
(dollars in thousands)	2014			2013			2014			2013
Components of Net Periodic Pension Cost
Service cost—benefits earned during the period	$	631		$	708		$	1,262		$	1,416
Interest cost on projected benefit obligation	1,106			996			2,212			1,992
Expected return on plan assets	(1,735		)	(1,565		)	(3,470		)	(3,130		)
Amortization of prior service cost (credit)	(35		)	(34		)	(70		)	(68		)
Recognized net actuarial loss	209			588			418			1,176
Net Periodic Pension Expense	$	176		$	693		$	352		$	1,386