Plant and equipment (Tables)

6 Months Ended

Jun. 30, 2023

Disclosure of detailed information about property, plant and equipment [abstract]

Summary of plant and equipment

For the six months ended June 30,											2023
	Assets under construction		Plant equipment and other		Computer equipment		Vehicles		Leasehold improvements		Total
Cost
Balance, beginning of the period	$	167.1	$	38.2	$	2.1	$	0.3	$	9.9	$	217.6
Additions	185.1		—		0.6		—		0.2		185.9
Transfers	(3.1)		3.1		—		—		—		—
Balance, end of the period	349.1		41.3		2.7		0.3		10.1		403.5
Accumulated depreciation
Balance, beginning of the period	—		(5.3)		(0.3)		(0.1)		(1.5)		(7.2)
Depreciation	—		(2.8)		(0.5)		—		(0.6)		(3.9)
Balance, end of the period	—		(8.1)		(0.8)		(0.1)		(2.1)		(11.1)
Net book value	$	349.1	$	33.2	$	1.9	$	0.2	$	8.0	$	392.4