Employee Benefit Plans (Tables) (Defined Benefit Pension)

6 Months Ended

Jun. 30, 2014

Defined Benefit Pension

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs

For the three and six months ended June 30, 2014 and 2013, the components of pension expense are as follows:

	Three months ended June 30						Six months ended June 30
(Dollars in thousands)	2014			2013			2014			2013
Service cost	$	2,785		$	4,261		$	6,166		$	8,483
Interest cost	6,251			6,409			12,807			12,304
Expected return on assets	(8,340		)	(7,474		)	(16,152		)	(14,405		)
Amortization of prior service cost	52			53			105			105
Amortization of net actuarial loss	1,546			4,241			3,092			8,493
Total pension expense	$	2,294		$	7,490		$	6,018		$	14,980