Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2024

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment

The basis for depreciation of the cost of an item and their estimated useful lives based on their usage is as follows:

Asset	Basis	Rate / term
Land improvements and site improvements	Declining balance	10	%
Buildings and building improvements	Straight-line	15 - 30 years
Yard, automotive and office equipment	Declining balance	20 - 30%
Computer software and equipment	Straight-line	3 - 5 years
Leasehold improvements	Straight-line	Lesser of lease term or economic life

At December 31, 2024	Cost		Accumulated depreciation		Net book value
Land	$	610.9	$	—	$	610.9
Buildings and improvements	499.6		(243.0)		256.6
Yard, automotive and office equipment	348.1		(157.7)		190.4
Computer software and equipment	109.2		(83.0)		26.2
Leasehold improvements	174.3		(66.4)		107.9
Assets under development	83.4		—		83.4
	$	1,825.5	$	(550.1)	$	1,275.4

At December 31, 2023	Cost		Accumulated depreciation		Net book value
Land	$	549.2	$	—	$	549.2
Buildings and improvements	491.1		(236.1)		255.0
Yard, automotive and office equipment	306.0		(117.5)		188.5
Computer software and equipment	108.2		(79.5)		28.7
Leasehold improvements	160.0		(37.3)		122.7
Assets under development	56.8		—		56.8
	$	1,671.3	$	(470.4)	$	1,200.9