The following table shows estimated useful lives of property, plant and equipment:

Property, plant and equipment

 

Useful Life

Buildings

 

40 to 50 years

Leasehold improvements

 

Lesser of lease term or the life of the asset

Machinery, equipment and furniture

 

3 to 10 years

Computer software

 

5 to 10 years

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

 

 

 

December 31

 

(in millions)

 

2025

 

 

2024

 

Land and improvements

 

$

18.9

 

 

$

17.4

 

Buildings and improvements to leaseholds

 

 

124.5

 

 

 

115.4

 

Machinery and equipment

 

 

370.2

 

 

 

365.2

 

Construction in progress

 

 

14.8

 

 

 

7.5

 

 

 

528.4

 

 

 

505.5

 

Less: accumulated depreciation

 

 

(389.6

)

 

 

(368.0

)

Net property, plant and equipment (1)

 

$

138.8

 

 

$

137.5

 

 

(1)
Net property, plant and equipment as of December 31, 2025, and 2024 included $25.8 million and $29.4 million of computer software assets, respectively, which are classified within machinery and equipment and construction in progress. Depreciation expense for software was $13.7 million, $13.8 million, and $14.1 million for the years ended December 31, 2025, 2024 and 2023, respectively.

Historical Timeline

Fiscal YearFiled
2025Mar 9, 2026Showing above
2024Feb 21, 2025
2023Feb 23, 2024
2022Feb 24, 2023
2021Feb 23, 2022
2020Feb 26, 2021
2019Feb 27, 2020
2018Feb 27, 2019
2017Feb 28, 2018
2016Feb 27, 2017
2015Feb 24, 2016

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.