Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2018

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
	March 31,
	2018		2017
Recognized in other income (expense):
Interest cost	$	1,514	$	1,781
Expected asset return		(2,590)		(2,656)
Amortization of loss		95		124
Net periodic benefit income		(981)		(751)
Settlement loss		—		1,956
Total benefit (income) expense	$	(981)	$	1,205

Other Postretirement Benefits

Employee Benefit Plans

Schedule of components of benefit costs (income)

Other Postretirement Benefits

	Three Months Ended
	March 31,
	2018		2017
Recognized in operating expenses:
Service cost	$	179	$	254
Recognized in other income (expense):
Interest cost		485		596
Amortization of gain		(214)		(38)
		271		558
Total benefit expense	$	450	$	812