Accounts receivable - Narrative (Details) - USD ($) $ in Millions	2 Months Ended	3 Months Ended
Dec. 31, 2022	Oct. 31, 2021
Trade and other current receivables [abstract]
Fair value pricing adjustments	$ 2.3	$ 1.2

Gains (Losses) Arising From Changes in Estimates Of Accounts Receivable

No definition available.

Name:	licy_GainsLossesArisingFromChangesInEstimatesOfAccountsReceivable
Namespace Prefix:	licy_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration