Property, Plant and Equipment

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

PROPERTY, PLANT AND EQUIPMENT

The classes of property, plant and equipment as of December 31 are summarized as follows ($ in millions):

	2019			2018
Land and improvements	$	23.7		$	24.7
Buildings	166.9			152.4
Machinery and equipment	502.3			459.7
Gross property, plant and equipment	692.9			636.8
Less: accumulated depreciation	(402.6		)	(375.2		)
Property, plant and equipment, net	$	290.3		$	261.6