Other Operating Expenses, Net Other Operating Expenses (Income) (Tables)

12 Months Ended

Dec. 31, 2016

Other Income and Expenses [Abstract]

Components of other operating (income) expenses

Other operating expenses, net consisted of the following:

	(Dollars in thousands)
	Year Ended December 31,
	2016		2015		2014
Environmental remediation expense	$	—	$	931	$	340
Impairment loss	—		—		3,046
Total other operating expenses, net	$	—	$	931	$	3,386