Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2017

Pension

Employee Benefit Plans

Schedule of components of benefit costs (income)

The following provides the components of benefit costs (income) for the applicable periods (dollars in thousands):

Pension

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2017		2016		2017		2016
Interest cost	$	1,626	$	1,703	$	5,126	$	5,695
Expected asset return		(2,576)		(2,159)		(7,805)		(7,513)
Amortization of loss		120		136		361		392
Net periodic benefit income		(830)		(320)		(2,318)		(1,426)
Settlement loss		1,090		486		3,360		486
Total benefit (income) expense	$	260	$	166	$	1,042	$	(940)

Other Postretirement Benefits

Employee Benefit Plans

Schedule of components of benefit costs (income)

Other Postretirement Benefits

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2017		2016		2017		2016
Service cost	$	215	$	259	$	683	$	777
Interest cost		532		655		1,661		1,964
Amortization of (gain) loss		(213)		119		(464)		356
Total benefit expense	$	534	$	1,033	$	1,880	$	3,097