Net Sales and Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2019

Disaggregation Of Revenue [Abstract]

Disaggregation Of Revenue [Table Text Block]

	Three Months Ended June 30, 2019
	North						South		Consolidated
	America		EMEA		Asia/Pacific		America		Total
Net sales	$	94,383	$	53,150	$	49,827	$	8,509	$	205,869
Customer Industries
Primary metals	$	38,918	$	24,723	$	31,041	$	4,479	$	99,161
Metalworking		40,698		26,740		16,470		3,628		87,536
Coatings and other		14,767		1,687		2,316		402		19,172
	$	94,383	$	53,150	$	49,827	$	8,509	$	205,869
Timing of Revenue Recognized
Product sales at a point in time	$	91,612	$	53,098	$	48,406	$	8,441	$	201,557
Services transferred over time		2,771		52		1,421		68		4,312
	$	94,383	$	53,150	$	49,827	$	8,509	$	205,869

	Three Months Ended June 30, 2018
	North						South		Consolidated
	America		EMEA		Asia/Pacific		America		Total
Net sales	$	97,392	$	60,166	$	55,348	$	9,056	$	221,962
Customer Industries
Primary metals	$	39,144	$	26,173	$	35,017	$	5,035	$	105,369
Metalworking		42,929		29,813		19,324		3,865		95,931
Coatings and other		15,319		4,180		1,007		156		20,662
	$	97,392	$	60,166	$	55,348	$	9,056	$	221,962
Timing of Revenue Recognized
Product sales at a point in time	$	94,562	$	60,110	$	53,017	$	8,987	$	216,676
Services transferred over time		2,830		56		2,331		69		5,286
	$	97,392	$	60,166	$	55,348	$	9,056	$	221,962

	Six Months Ended June 30, 2019
	North						South		Consolidated
	America		EMEA		Asia/Pacific		America		Total
Net sales	$	189,636	$	109,438	$	100,354	$	17,651	$	417,079
Customer Industries
Primary metals	$	78,603	$	49,606	$	63,133	$	9,769	$	201,111
Metalworking		81,134		54,988		32,938		7,389		176,449
Coatings and other		29,899		4,844		4,283		493		39,519
	$	189,636	$	109,438	$	100,354	$	17,651	$	417,079
Timing of Revenue Recognized
Product sales at a point in time	$	184,095	$	109,332	$	97,057	$	17,505	$	407,989
Services transferred over time		5,541		106		3,297		146		9,090
	$	189,636	$	109,438	$	100,354	$	17,651	$	417,079

	Six Months Ended June 30, 2018
	North						South		Consolidated
	America		EMEA		Asia/Pacific		America		Total
Net sales	$	189,212	$	122,221	$	104,125	$	18,459	$	434,017
Customer Industries
Primary metals	$	76,702	$	53,487	$	65,924	$	10,334	$	206,447
Metalworking		83,518		60,983		36,850		7,648		188,999
Coatings and other		28,992		7,751		1,351		477		38,571
	$	189,212	$	122,221	$	104,125	$	18,459	$	434,017
Timing of Revenue Recognized
Product sales at a point in time	$	183,548	$	122,109	$	99,865	$	18,306	$	423,828
Services transferred over time		5,664		112		4,260		153		10,189
	$	189,212	$	122,221	$	104,125	$	18,459	$	434,017