Revenue Revenue (Tables)

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

The following table presents the Company’s disaggregated net sales by primary end market served (dollars in thousands):

	Three months ended September 30,				Nine months ended September 30,
Customer End Markets	2018		2017		2018		2017
Consumer	$	72,440	$	68,380	$	209,160	$	194,040
Aerospace	49,070		48,550		140,500		141,550
Industrial	51,880		46,120		162,200		145,410
Oil and gas	50,390		46,280		153,930		141,530
Total net sales	$	223,780	$	209,330	$	665,790	$	622,530