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Property, Plant and Equipment
 12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Property, Plant and Equipment
Property, plant and equipment, at December 31, consist of the following:
 20202019
Land and improvements$40.1 $41.8 
Buildings and improvements340.1 337.2 
Machinery and equipment1,506.5 1,467.0 
Construction in progress15.8 44.9 
 1,902.5 1,890.9 
Less accumulated depreciation(1,022.1)(941.7)
Property, plant and equipment - net$880.4 $949.2 
For the years ended December 31, 2020, 2019 and 2018, we recorded depreciation and amortization expense of $83.0 million, $83.2 million, and $90.1 million, respectively.