Property, Plant And Equipment (Components Of Property, Plant, And Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 1,010,278	$ 878,575
Accumulated depreciation	(409,426)	(335,507)
Total property, plant and equipment — net	600,852	543,068
Land
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	45,676	41,937
Buildings
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	400,617	332,150
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	449,783	384,259
Office furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	70,001	65,775
Construction-in-progress
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 44,201	$ 54,454