XML 30 R17.htm IDEA: XBRL DOCUMENT v3.22.4
Property, Plant and Equipment, Net
 12 Months Ended
Dec. 31, 2022
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment, Net
7. Property, Plant and Equipment, Net

Property, plant and equipment, net, ("PP&E") as of the periods indicated consisted of the following (in millions):
December 31,
 20222021
Equipment, furniture and fixtures, and software$196.0 $180.7 
Building and leasehold improvements44.8 43.0 
Land26.1 24.1 
Construction in progress8.4 8.9 
Plant and transportation equipment8.2 8.3 
$283.5 $265.0 
Less: Accumulated depreciation118.5 95.1 
Total$165.0 $169.9 

Depreciation expense was $25.6 million and $25.0 million for the years ended December 31, 2022 and 2021, respectively. These amounts included $15.0 million and $12.2 million of depreciation expense recognized within cost of revenue for the years ended December 31, 2022 and 2021, respectively.
As of December 31, 2022 and December 31, 2021, the net book value of equipment under capital leases included in PP&E was $2.1 million and $0.2 million, respectively. As of December 31, 2022 and December 31, 2021, the net book value of capitalized internal-use software included in PP&E was $35.6 million and $32.8 million, respectively.