Net Sales and Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2019

Disaggregation Of Revenue [Abstract]

Disaggregation Of Revenue [Table Text Block]

	Three Months Ended September 30, 2019
							Consolidated
	Americas		EMEA		Asia/Pacific		Total
Customer Industries
Metals	$	45,782	$	26,440	$	40,667	$	112,889
Metalworking and other		70,928		56,028		33,599		160,555
		116,710		82,468		74,266		273,444
Global Specialty Businesses		38,813		5,071		7,802		51,686
	$	155,523	$	87,539	$	82,068	$	325,130
Timing of Revenue Recognized
Product sales at a point in time	$	150,906	$	85,579	$	80,362	$	316,847
Services transferred over time		4,617		1,960		1,706		8,283
	$	155,523	$	87,539	$	82,068	$	325,130

	Three Months Ended September 30, 2018
							Consolidated
	Americas		EMEA		Asia/Pacific		Total
Customer Industries
Metals	$	42,052	$	23,998	$	31,553	$	97,603
Metalworking and other		35,322		27,348		18,375		81,045
		77,374		51,346		49,928		178,648
Global Specialty Businesses		33,392		4,153		5,829		43,374
	$	110,766	$	55,499	$	55,757	$	222,022
Timing of Revenue Recognized
Product sales at a point in time	$	107,957	$	55,437	$	53,998	$	217,392
Services transferred over time		2,809		62		1,759		4,630
	$	110,766	$	55,499	$	55,757	$	222,022

	Nine Months Ended September 30, 2019
							Consolidated
	Americas		EMEA		Asia/Pacific		Total
Customer Industries
Metals	$	126,145	$	75,330	$	98,230	$	299,705
Metalworking and other		134,537		108,950		67,004		310,491
		260,682		184,280		165,234		610,196
Global Specialty Businesses		102,130		12,696		17,187		132,013
	$	362,812	$	196,976	$	182,421	$	742,209
Timing of Revenue Recognized
Product sales at a point in time	$	352,504	$	194,911	$	177,416	$	724,831
Services transferred over time		10,308		2,065		5,005		17,378
	$	362,812	$	196,976	$	182,421	$	742,209

	Nine Months Ended September 30, 2018
							Consolidated
	Americas		EMEA		Asia/Pacific		Total
Customer Industries
Metals	$	123,618	$	77,047	$	90,310	$	290,975
Metalworking and other		101,497		87,706		53,078		242,281
		225,115		164,753		143,388		533,256
Global Specialty Businesses		93,323		12,967		16,493		122,783
	$	318,438	$	177,720	$	159,881	$	656,039
Timing of Revenue Recognized
Product sales at a point in time	$	309,810	$	177,548	$	153,861	$	641,219
Services transferred over time		8,628		172		6,020		14,820
	$	318,438	$	177,720	$	159,881	$	656,039