Accounts receivable (Tables)

9 Months Ended

Sep. 30, 2023

Trade and other current receivables [abstract]

Schedule of other receivables

As at	September 30, 2023		December 31, 2022
Trade receivables	$	2.3	$	4.3
Total accounts receivable	2.3		4.3
Non-trade receivables	$	—	$	3.5
Sales taxes receivable	2.7		4.1
Other	0.8		2.4
Total other receivables	$	3.5	$	10.0