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)
20252024
Land and leasehold improvements$48.9 $48.0 
Buildings and improvements214.8 180.0 
Machinery, equipment, fixtures and software391.2 313.1 
Construction in process49.6 55.5 
Total property, plant and equipment704.5 596.6 
Accumulated depreciation (384.9)(319.8)
Property, plant and equipment, net$319.6 $276.8 

Historical Timeline

Fiscal YearFiled
2025Feb 18, 2026Showing above
2024Feb 19, 2025
2023Feb 21, 2024
2022Feb 22, 2023
2017Feb 28, 2018
2016Mar 13, 2017

About PP&E Disclosures

The PP&E disclosure details a company's physical asset base — land, buildings, machinery, and equipment — along with the depreciation methods and useful life assumptions that determine how these costs flow through the income statement. Capitalization policy thresholds reveal management's judgment on the boundary between expense and asset, directly affecting both reported earnings and asset values.

Key signals: changes in estimated useful lives or depreciation methods can materially shift reported earnings without any operational change. Compare capital expenditures against depreciation expense — when capex consistently trails depreciation, the asset base may be aging and underinvested. Watch for large asset impairments or write-downs that signal overvalued carrying amounts. Asset retirement obligations reveal future environmental or decommissioning costs that are often underappreciated. Compare PP&E intensity (PP&E-to-revenue) against industry peers to assess capital efficiency and competitive positioning.