Net Sales and Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2019

Disaggregation Of Revenue [Abstract]

Disaggregation Of Revenue [Table Text Block]

	Three Months Ended March 31, 2019
	North						South		Consolidated
	America		EMEA		Asia/Pacific		America		Total
Net sales	$	95,253	$	56,288	$	50,527	$	9,142	$	211,210
Customer Industries
Primary metals	$	39,685	$	24,883	$	32,092	$	5,290	$	101,950
Metalworking		40,436		28,248		16,468		3,761		88,913
Coatings and other		15,132		3,157		1,967		91		20,347
	$	95,253	$	56,288	$	50,527	$	9,142	$	211,210
Timing of Revenue Recognized
Product sales at a point in time	$	92,483	$	56,234	$	48,651	$	9,064	$	206,432
Services transferred over time		2,770		54		1,876		78		4,778
	$	95,253	$	56,288	$	50,527	$	9,142	$	211,210

	Three Months Ended March 31, 2018
	North						South		Consolidated
	America		EMEA		Asia/Pacific		America		Total
Net sales	$	91,820	$	62,055	$	48,777	$	9,403	$	212,055
Customer Industries
Primary metals	$	37,558	$	27,314	$	30,907	$	5,299	$	101,078
Metalworking		40,589		31,170		17,526		3,783		93,068
Coatings and other		13,673		3,571		344		321		17,909
	$	91,820	$	62,055	$	48,777	$	9,403	$	212,055
Timing of Revenue Recognized
Product sales at a point in time	$	88,986	$	61,999	$	46,848	$	9,319	$	207,152
Services transferred over time		2,834		56		1,929		84		4,903
	$	91,820	$	62,055	$	48,777	$	9,403	$	212,055