Net Sales and Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Product Information [Line Items]
Net sales	$ 367,224	$ 325,130	$ 1,031,825	$ 742,209
America's [Member]
Product Information [Line Items]
Net sales	119,540	116,691	330,012	260,663
EMEA [Member]
Product Information [Line Items]
Net sales	94,005	82,369	276,546	183,806
Asia Pacific [Member]
Product Information [Line Items]
Net sales	84,877	74,266	226,850	165,234
Transferred At Point In Time [Member]
Product Information [Line Items]
Net sales	355,573	316,842	998,788	724,831
Transferred At Point In Time [Member] | America's [Member]
Product Information [Line Items]
Net sales	153,820	150,904	431,266	352,504
Transferred At Point In Time [Member] | EMEA [Member]
Product Information [Line Items]
Net sales	107,093	85,579	313,511	194,911
Transferred At Point In Time [Member] | Asia Pacific [Member]
Product Information [Line Items]
Net sales	94,660	80,359	254,011	177,416
Transferred Over Time [Member]
Product Information [Line Items]
Net sales	11,651	8,288	33,037	17,378
Transferred Over Time [Member] | America's [Member]
Product Information [Line Items]
Net sales	4,917	4,621	14,468	10,308
Transferred Over Time [Member] | EMEA [Member]
Product Information [Line Items]
Net sales	4,341	1,959	12,638	2,065
Transferred Over Time [Member] | Asia Pacific [Member]
Product Information [Line Items]
Net sales	2,393	1,708	5,931	5,005
Metals [Member]
Product Information [Line Items]
Net sales	112,461	118,241	323,638	305,477
Metals [Member] | America's [Member]
Product Information [Line Items]
Net sales	42,098	48,600	121,458	129,031
Metals [Member] | EMEA [Member]
Product Information [Line Items]
Net sales	25,362	26,377	80,174	75,578
Metals [Member] | Asia Pacific [Member]
Product Information [Line Items]
Net sales	45,001	43,264	122,006	100,868
Metalworking And Other[Member]
Product Information [Line Items]
Net sales	185,961	155,085	509,770	304,226
Metalworking And Other[Member] | America's [Member]
Product Information [Line Items]
Net sales	77,442	68,091	208,554	131,632
Metalworking And Other[Member] | EMEA [Member]
Product Information [Line Items]
Net sales	68,643	55,992	196,372	108,228
Metalworking And Other[Member] | Asia Pacific [Member]
Product Information [Line Items]
Net sales	39,876	31,002	104,844	64,366
Global Specialty Businesses [Member]
Product Information [Line Items]
Net sales	68,802	51,804	198,417	132,506
Global Specialty Businesses [Member] | America's [Member]
Product Information [Line Items]
Net sales	39,197	38,834	115,722	102,149
Global Specialty Businesses [Member] | EMEA [Member]
Product Information [Line Items]
Net sales	17,429	5,169	49,603	13,170
Global Specialty Businesses [Member] | Asia Pacific [Member]
Product Information [Line Items]
Net sales	12,176	7,801	33,092	17,187
Total Sales With Global Specialty Businesses [Member]
Product Information [Line Items]
Net sales	367,224	325,130	1,031,825	742,209
Total Sales With Global Specialty Businesses [Member] | America's [Member]
Product Information [Line Items]
Net sales	158,737	155,525	445,734	362,812
Total Sales With Global Specialty Businesses [Member] | EMEA [Member]
Product Information [Line Items]
Net sales	111,434	87,538	326,149	196,976
Total Sales With Global Specialty Businesses [Member] | Asia Pacific [Member]
Product Information [Line Items]
Net sales	97,053	82,067	259,942	182,421
Total Sales Without Global Specialty Businesses [Member]
Product Information [Line Items]
Net sales	298,422	273,326	833,408	609,703
Total Sales Without Global Specialty Businesses [Member] | America's [Member]
Product Information [Line Items]
Net sales	119,540	116,691	330,012	260,663
Total Sales Without Global Specialty Businesses [Member] | EMEA [Member]
Product Information [Line Items]
Net sales	94,005	82,369	276,546	183,806
Total Sales Without Global Specialty Businesses [Member] | Asia Pacific [Member]
Product Information [Line Items]
Net sales	$ 84,877	$ 74,266	$ 226,850	$ 165,234