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Description of Business and Segmented Disclosures - Narrative (Detail)	9 Months Ended
	Sep. 30, 2021 plant
Canadian Manufacturing | Downstream
Disclosure of operating segments [line items]
Number of ethanol plants	2

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- Definition

Number Of Ethanol Plants

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No definition available.

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Details

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Namespace Prefix:
Data Type:	na
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Period Type:

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- Details

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Namespace Prefix:
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Period Type: