Business Segments - Performance of reportable segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Net sales	$ 474,171	$ 429,783
Segment operating earnings	92,928	109,125
Combination, integration and other acquisition-related expenses	(4,053)	(5,815)
Restructuring and related charges	(820)	(1,175)
Fair value step up of acquired inventory sold	0	(801)
Non-operating and administrative expenses	(43,463)	(40,992)
Depreciation of corporate assets and amortization	(15,189)	(15,448)
Operating income	29,403	44,894
Other (expense) income, net	(2,206)	4,687
Interest expense, net	(5,345)	(5,470)
Income (loss) before taxes and equity in net income of associated companies	21,852	44,111
Americas [Member]
Segment Reporting Information [Line Items]
Net sales	154,144	134,871
EMEA [Member]
Segment Reporting Information [Line Items]
Net sales	125,687	119,814
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Net sales	104,234	96,706
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	474,171	429,783
Operating Segments [Member] | Global Specialty Businesses [Member]
Segment Reporting Information [Line Items]
Net sales	90,106	78,392
Segment operating earnings	25,035	24,169
Operating Segments [Member] | Americas [Member]
Segment Reporting Information [Line Items]
Net sales	211,408	180,127
Segment operating earnings	29,220	32,234
Operating Segments [Member] | Americas [Member] | Global Specialty Businesses [Member]
Segment Reporting Information [Line Items]
Net sales	57,264	45,256
Operating Segments [Member] | EMEA [Member]
Segment Reporting Information [Line Items]
Net sales	145,708	140,086
Segment operating earnings	16,766	25,244
Operating Segments [Member] | EMEA [Member] | Global Specialty Businesses [Member]
Segment Reporting Information [Line Items]
Net sales	20,021	20,272
Operating Segments [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Net sales	117,055	109,570
Segment operating earnings	21,907	27,478
Operating Segments [Member] | Asia Pacific [Member] | Global Specialty Businesses [Member]
Segment Reporting Information [Line Items]
Net sales	12,821	12,864
Intersegment Elimination [Member] | Global Specialty Businesses [Member]
Segment Reporting Information [Line Items]
Net sales	1,700	2,000
Intersegment Elimination [Member] | Americas [Member]
Segment Reporting Information [Line Items]
Net sales	2,900	3,300
Intersegment Elimination [Member] | EMEA [Member]
Segment Reporting Information [Line Items]
Net sales	8,900	8,800
Intersegment Elimination [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Net sales	$ 300	$ 100