Capital Management (Details) - CAD ($) $ in Millions	Mar. 31, 2025	Mar. 31, 2024
Disclosure of notes and other explanatory information [Abstract]
Shareholders' equity and debt	$ 713.2	$ 706.7

Disclosure of notes and other explanatory information [Abstract]

No definition available.

Name:	acb_DisclosureofnotesandotherexplanatoryinformationAbstract
Namespace Prefix:	acb_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration