Property and Equipment, Net

9 Months Ended

Sep. 30, 2023

Property, Plant and Equipment [Abstract]

The following table provides details of property and equipment, net, including property and equipment held under finance leases as of the dates indicated (in millions):


	September 30, 2023		December 31, 2022
Land	$	73.5	$	73.5
Buildings and leasehold improvements	91.4		86.7
Machinery, equipment and vehicles	3,033.0		2,797.0
Office equipment, furniture and internal-use software	324.3		286.8
Construction in progress	43.7		67.4
Total property and equipment	$	3,565.9	$	3,311.4
Less accumulated depreciation and amortization	(1,836.1)		(1,557.3)
Property and equipment, net	$	1,729.8	$	1,754.1

As of September 30, 2023 and December 31, 2022, the gross amount of capitalized internal-use software totaled $208.9 million and $186.6 million, respectively, and, net of accumulated amortization, totaled $49.8 million and $39.9 million, respectively. During the second quarter of 2023, the depreciable lives of certain assets were updated on a prospective basis to better align the respective assets’ lives with their expected useful lives, based on management’s assessment of the physical and economic factors of the related assets. The effect of this update was a decrease in depreciation expense of approximately $2 million and $4 million for the three and nine month periods ended September 30, 2023, respectively.