Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Components of Property, Plant and Equipment

Estimated useful lives by asset class are as follows:

	Average useful life (in years)
Buildings and building improvements	5	to	20
Machinery, equipment and fixtures	3	to	15
Computer hardware and software	3	to	7
Furniture and automobiles	3	to	7
Leasehold improvements	Lesser of useful life or lease term

The major components of property, plant and equipment were as follows:

	December 31,
(dollars in millions)	2019		2018
Land and leasehold improvements	$	68.6	$	67.8
Buildings and improvements	113.5		101.0
Machinery, equipment, fixtures and software	220.0		207.3
Construction in process	16.0		14.9
Total property, plant and equipment	418.1		391.0
Accumulated depreciation	(153.3)		(124.1)
Property, plant and equipment, net	$	264.8	$	266.9