v3.26.1
Property, Plant and Equipment, net
 3 Months Ended
Mar. 31, 2026
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment, net Property, Plant and Equipment, net     
Property, plant and equipment, net includes the following (in thousands):
March 31,December 31,
Useful Life20262025
Aviation equipment(a)
3-10 years
$59,548 $43,498 
Machinery and equipment
7-20 years
53,657 53,774 
Buildings and leasehold improvements
15-39 years
29,806 30,100 
Drilling rigs and directional drilling equipment
3-15 years
13,085 13,062 
Vehicles, trucks and trailers
5-10 years
13,061 13,044 
Rail improvements
10-20 years
11,759 11,759 
LandN/A6,025 6,025 
Other property, plant and equipment
3-15 years
6,685 6,721 
193,626 177,983 
Equipment not yet placed in service19,893 25,970 
213,519 203,953 
Less: Accumulated depreciation(b)
100,291 97,856 
Total property, plant and equipment, net$113,228 $106,097 
(a)    This equipment relates to assets leased and available to be leased to customers under operating leases.
(b)    Includes accumulated depreciation of $8.1 million and $5.7 million at March 31, 2026 and December 31, 2025, respectively, related to assets under operating leases.

Depreciation, depletion, amortization and accretion
A summary of depreciation, depletion, amortization and accretion is below (in thousands):
Three Months Ended March 31,
20262025
Depreciation$3,432 $2,036 
Amortization14 14 
Depletion and accretion24 33 
Depreciation, depletion, amortization and accretion$3,470 $2,083