Property, plant, equipment, and mineral properties, net" were comprised of the following (in thousands):
December 31,
20252024
Land$24,032 $24,136 
Ponds and land improvements98,639 95,787 
Mineral properties and development costs159,892 161,826 
Buildings and plant97,987 95,439 
Machinery and equipment331,545 318,545 
Vehicles8,885 8,152 
Office equipment and leasehold improvements10,164 10,613 
Operating lease ROU assets3,181 4,571 
Breeding stock223 277 
Construction in progress14,003 6,423 
Total property, plant, equipment, and mineral properties, gross$748,551 $725,769 
Less: accumulated depreciation, depletion, and amortization(413,778)(381,431)
Total property, plant, equipment, and mineral properties, net$334,773 $344,338 

Historical Timeline

Fiscal YearFiled
2025Mar 5, 2026Showing above
2024Mar 4, 2025
2023Mar 7, 2024
2022Mar 7, 2023
2021Mar 8, 2022
2020Mar 2, 2021
2019Mar 3, 2020
2018Mar 12, 2019
2017Feb 27, 2018
2016Feb 28, 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.