Accounts receivable - Additional Information (Detail) - Li Cycle Holdings Corp [Member] - USD ($)	12 Months Ended
Oct. 31, 2021	Oct. 31, 2020
Accounts Receivables [Line Items]
Fair value gain arising from changes in estimates	$ 805,789	$ 0
Service Related Receivables [Member]
Accounts Receivables [Line Items]
Allowance for credit loss	$ 0	$ 0

The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 7
-IssueDate 2021-01-01
-Paragraph 16
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b
-URIDate 2021-03-24

Name:	ifrs-full_AllowanceAccountForCreditLossesOfFinancialAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant