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Material Accounting Policies - Summary of Company's Ownership Percentage in Each of Its Subsidiaries (Detail)	12 Months Ended
	Dec. 31, 2024
NXE Energy Royalty Ltd [member]
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100.00%
Location	Canada
NXE Energy SW1 Ltd [member]
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100.00%
Location	Canada
NXE Energy SW3 Ltd [member]
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100.00%
Location	Canada

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The principal place of business of a subsidiary. [Refer: Principal place of business; Total for all subsidiaries [member]]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Total for all subsidiaries [member]]

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-IssueDate 2024-01-01
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