Intangible Assets, Net - Additional Information (Detail) $ in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2025 MXN ($)	Dec. 31, 2024 MXN ($)	Dec. 31, 2023 MXN ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2025 MXN ($)
Disclosure of detailed information about intangible assets [abstract]
Intangible assets		$ 17,088,277		$ 612,181	$ 10,998,869
Expenses related to unsuccessful wells	$ 22,303,028	$ 38,990,149	$ 33,966,315

The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Number 38
-IssueDate 2025-01-01
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-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
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-URIDate 2025-03-27

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2027-01-01
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-Number 1
-IssueDate 2025-01-01
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-URIDate 2025-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant