Property and equipment are primarily depreciated over the following useful lives:

Years
Buildings and improvements
5 - 40
Airplanes and aviation equipment
5 - 20
Machinery, equipment and tooling
3 - 10
Furniture and fixtures
5 - 10
Computer hardware and software
3 - 5
Property and equipment at cost, less accumulated depreciation, is as follows:

December 31,
(in millions)20252024
Land$15.5 $12.3 
Building and land improvements173.9 158.8 
Construction in progress15.5 3.9 
Manufacturing and office equipment288.9 266.7 
Aviation equipment13.5 4.6 
Less accumulated depreciation(285.0)(264.4)
Total$222.3 $181.9 

Historical Timeline

Fiscal YearFiled
2025Feb 25, 2026Showing above
2024Feb 26, 2025
2023Feb 28, 2024
2022Mar 1, 2023
2021Feb 28, 2022
2020Mar 1, 2021
2019Mar 17, 2020
2018Mar 18, 2019
2017Mar 1, 2018
2016Mar 1, 2017
2015Feb 29, 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.