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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of property, plant and equipment useful life
Estimated useful lives by asset class are as follows:
Average useful life
(in years)
Buildings and building improvements5to20
Machinery, equipment and fixtures3to15
Computer hardware and software3to7
Furniture and automobiles3to7
Leasehold improvements
Lesser of useful life
or lease term
The major components of property, plant and equipment, net were as follows:
December 31,
  (dollars in millions)
20232022
Land and leasehold improvements$51.7 $52.0 
Buildings and improvements168.5 163.9 
Machinery, equipment, fixtures and software334.3 299.8 
Construction in process66.7 50.3 
Total property, plant and equipment621.2 566.0 
Accumulated depreciation (324.3)(288.8)
Property, plant and equipment, net$296.9 $277.2