Estimated lives of property, plant and equipment are as follows:
Estimated Useful Life
Computer equipment and software
2 to 5 years
Furniture and fixtures7 years
Lab equipment
1 to 5 years
Buildings and facilities
15 to 30 years
Vehicles5 years
Leasehold improvementsShorter of useful life or remaining lease term
Property, plant and equipment, net consisted of the following (in thousands):
As of December 31,
20252024
Lab equipment$146,279 $150,887 
Leasehold improvements140,513 135,964 
Buildings and facilities49,760 48,255 
Construction in progress192 1,984 
Computer equipment and software9,056 14,897 
Furniture and fixtures6,520 6,545 
Land6,060 6,060 
Total property, plant, and equipment358,380 364,592 
Less: Accumulated depreciation(190,597)(160,872)
Property, plant and equipment, net$167,783 $203,720 

Historical Timeline

Fiscal YearFiled
2025Feb 26, 2026Showing above
2021Mar 29, 2022

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.