Segment Reporting Sales and PPE by Destination - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets
Net Sales	$ 3,085,177	$ 3,008,652	$ 2,935,586
Total Segments Property, Plant and Equipment, Net	798,868	748,657
Revenue from Contract with Customer, Excluding Assessed Tax	3,085,177	3,008,652	2,935,586
UNITED STATES
Revenues from External Customers and Long-Lived Assets
Net Sales	1,014,180	984,524	933,419
Total Segments Property, Plant and Equipment, Net	208,038	200,497
OTHER AMERICAS
Revenues from External Customers and Long-Lived Assets
Net Sales	166,446	181,323	172,537
Total Segments Property, Plant and Equipment, Net	3,713	3,828
Americas [Member]
Revenues from External Customers and Long-Lived Assets
Net Sales		1,165,847
Revenue from Contract with Customer, Excluding Assessed Tax	1,180,626
TOTAL AMERICAS
Revenues from External Customers and Long-Lived Assets
Net Sales			1,105,956
Total Segments Property, Plant and Equipment, Net	211,751	204,325
GERMANY
Revenues from External Customers and Long-Lived Assets
Net Sales	199,499	195,790	205,296
Total Segments Property, Plant and Equipment, Net	48,468	48,401
FRANCE
Revenues from External Customers and Long-Lived Assets
Net Sales	134,542	130,387	141,513
Total Segments Property, Plant and Equipment, Net	9,123	8,849
UNITED KINGDOM
Revenues from External Customers and Long-Lived Assets
Net Sales	70,163	66,855	70,378
Total Segments Property, Plant and Equipment, Net	34,631	26,502
SWITZERLAND
Revenues from External Customers and Long-Lived Assets
Net Sales	69,965	65,202	65,377
Total Segments Property, Plant and Equipment, Net	314,059	295,029
OTHER EUROPE
Revenues from External Customers and Long-Lived Assets
Net Sales	447,097	433,858	426,209
Total Segments Property, Plant and Equipment, Net	64,048	59,179
Europe [Member]
Revenues from External Customers and Long-Lived Assets
Net Sales		892,092
Revenue from Contract with Customer, Excluding Assessed Tax	921,266
TOTAL EUROPE
Revenues from External Customers and Long-Lived Assets
Net Sales			908,773
Total Segments Property, Plant and Equipment, Net	470,329	437,960
CHINA
Revenues from External Customers and Long-Lived Assets
Net Sales	565,100	527,076	506,360
Total Segments Property, Plant and Equipment, Net	89,277	85,817
REST OF WORLD
Revenues from External Customers and Long-Lived Assets
Net Sales	418,185	423,637	414,497
Total Segments Property, Plant and Equipment, Net	27,511	20,555
Asia [Member]
Revenues from External Customers and Long-Lived Assets
Net Sales		950,713
Revenue from Contract with Customer, Excluding Assessed Tax	983,285
TOTAL ASIA REST OF WORLD
Revenues from External Customers and Long-Lived Assets
Net Sales			$ 920,857
Total Segments Property, Plant and Equipment, Net	$ 116,788	$ 106,372