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Guarantees, Commitments,And Contingencies - Summary of Companys purchase obligations of future period (Detail) - CAD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Disclosure of Companys purchase obligations of future period [Abstract]
2022	$ 312,790	$ 243,737
2023	4,144	2,904
2024	$ 126	$ 125

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- Definition

Disclosure of Company's purchase obligations of future period.

+ References

No definition available.

+ Details

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Namespace Prefix:	enrff_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

Purchase obligations to be paid year 2.

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No definition available.

+ Details

Name:	enrff_PurchaseObligationsToBePaidYear2
Namespace Prefix:	enrff_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Definition

Purchase obligations to be paid year 3.

+ References

No definition available.

+ Details

Name:	enrff_PurchaseObligationsToBePaidYear3
Namespace Prefix:	enrff_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Definition

Purchase obligations to be paid year one.

+ References

No definition available.

+ Details

Name:	enrff_PurchaseObligationsToBePaidYearOne
Namespace Prefix:	enrff_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant