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Property, Plant and Equipment
9 Months Ended
Oct. 02, 2020
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment PROPERTY, PLANT AND EQUIPMENT
The classes of property, plant and equipment are summarized as follows ($ in millions):

October 2, 2020December 31, 2019
Land and improvements$24.2 $23.7 
Buildings178.0 166.9 
Machinery and equipment509.8 502.3 
Property, plant and equipment, gross712.0 692.9 
Less: accumulated depreciation(415.2)(402.6)
Property, plant and equipment, net$296.8 $290.3