Property, Plant and Equipment, Net

3 Months Ended

Mar. 31, 2024

Property, Plant and Equipment [Abstract]

7. Property, Plant and Equipment, Net

Property, plant and equipment, net, ("PP&E") consisted of the following (in millions):


	March 31, 2024		December 31, 2023


Equipment, furniture and fixtures, and software	$	208.2	$	210.7
Building and leasehold improvements	40.8		42.9
Land	24.6		25.8
Construction in progress	7.1		4.8
Plant and transportation equipment	8.0		8.1
	$	288.7	$	292.3
Less: Accumulated depreciation	141.9		137.7
Total	$	146.8	$	154.6

Depreciation expense was $6.5 million and $6.3 million for the three months ended March 31, 2024 and 2023, respectively. These amounts included $4.0 million and $3.9 million of depreciation expense recognized within cost of revenue for the three months ended March 31, 2024 and 2023, respectively.

As of March 31, 2024 and December 31, 2023, the net book value of equipment under finance leases included in PP&E was $0.9 million and $2.3 million, respectively.

As of March 31, 2024 and December 31, 2023, $3.8 million and $3.1 million in assets held-for-sale were presented separately in the Consolidated Balance Sheet. As of March 31, 2024 assets held-for-sale primarily consisted of a building and land and their associated improvements at the Company's Infrastructure segment. As of December 31, 2023, assets held-for-sale primarily consisted of two buildings and their associated building improvements at the Company's Infrastructure segment.