Property, Plant and Equipment, Net - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment
Property, Plant and Equipment, Gross	$ 1,421,201	$ 1,312,601
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(622,333)	(563,944)
Total Property, Plant and Equipment, Net	798,868	748,657
Land [Member]
Property, Plant and Equipment
Property, Plant and Equipment, Gross	61,838	58,047
Building and Building Improvements
Property, Plant and Equipment
Property, Plant and Equipment, Gross	356,699	326,743
Machinery and Equipment
Property, Plant and Equipment
Property, Plant and Equipment, Gross	458,174	413,411
Software
Property, Plant and Equipment
Property, Plant and Equipment, Gross	$ 544,490	$ 514,400