Segment Reporting Sales and PPE by Destination (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets
Net Sales	$ 3,008,652	$ 2,935,586	$ 2,725,053
Total Segments Property, Plant and Equipment, Net	748,657	717,526
Revenue from Contract with Customer, Excluding Assessed Tax	3,008,652	2,935,586
UNITED STATES
Revenues from External Customers and Long-Lived Assets
Net Sales	984,524	933,419	888,241
Total Segments Property, Plant and Equipment, Net	200,497	234,395
OTHER AMERICAS
Revenues from External Customers and Long-Lived Assets
Net Sales	181,323	172,537	162,672
Total Segments Property, Plant and Equipment, Net	3,828	2,946
Americas [Member]
Revenues from External Customers and Long-Lived Assets
Net Sales		1,105,956
Revenue from Contract with Customer, Excluding Assessed Tax	1,165,847
TOTAL AMERICAS
Revenues from External Customers and Long-Lived Assets
Net Sales			1,050,913
Total Segments Property, Plant and Equipment, Net	204,325	237,341
GERMANY
Revenues from External Customers and Long-Lived Assets
Net Sales	195,790	205,296	192,126
Total Segments Property, Plant and Equipment, Net	48,401	48,030
FRANCE
Revenues from External Customers and Long-Lived Assets
Net Sales	130,387	141,513	130,427
Total Segments Property, Plant and Equipment, Net	8,849	7,810
UNITED KINGDOM
Revenues from External Customers and Long-Lived Assets
Net Sales	66,855	70,378	64,361
Total Segments Property, Plant and Equipment, Net	26,502	17,347
SWITZERLAND
Revenues from External Customers and Long-Lived Assets
Net Sales	65,202	65,377	63,090
Total Segments Property, Plant and Equipment, Net	295,029	293,388
OTHER EUROPE
Revenues from External Customers and Long-Lived Assets
Net Sales	433,858	426,209	399,923
Total Segments Property, Plant and Equipment, Net	59,179	12,791
Europe [Member]
Revenues from External Customers and Long-Lived Assets
Net Sales		908,773
Revenue from Contract with Customer, Excluding Assessed Tax	892,092
TOTAL EUROPE
Revenues from External Customers and Long-Lived Assets
Net Sales			849,927
Total Segments Property, Plant and Equipment, Net	437,960	379,366
CHINA
Revenues from External Customers and Long-Lived Assets
Net Sales	527,076	506,360	439,373
Total Segments Property, Plant and Equipment, Net	85,817	87,643
REST OF WORLD
Revenues from External Customers and Long-Lived Assets
Net Sales	423,637	414,497	384,840
Total Segments Property, Plant and Equipment, Net	20,555	13,176
Asia [Member]
Revenues from External Customers and Long-Lived Assets
Net Sales		920,857
Revenue from Contract with Customer, Excluding Assessed Tax	950,713
TOTAL ASIA REST OF WORLD
Revenues from External Customers and Long-Lived Assets
Net Sales			$ 824,213
Total Segments Property, Plant and Equipment, Net	$ 106,372	$ 100,819