Employee Benefit Plans (Tables) (Defined Benefit Pension)

3 Months Ended

Mar. 31, 2014

Defined Benefit Pension

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs

For the three-month periods ended March 31, 2014 and March 31, 2013, the components of pension expense are as follows:

	Three months ended March 31
(Dollars in thousands)	2014			2013
Service cost	$	3,381		$	4,222
Interest cost	6,556			5,895
Expected return on assets	(7,812		)	(6,931		)
Amortization of prior service cost	53			53
Amortization of net actuarial loss	1,546			4,251
Total pension expense	$	3,724		$	7,490