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Financial Instruments - Significant Unobservable Inputs (Details) - Internal Models with Significant Unobservable Inputs (Level 3) $ in Thousands	12 Months Ended
	Dec. 31, 2020 MXN ($)
Reconciliation for all assets and liabilities measured at fair value
Balance at beginning of year	$ 33,775,451
Included in other comprehensive income	(16,387,752)
Warrants exercised for common stock of UHI	$ (17,387,699)

X

- Definition

The fair value of financial assets. [Refer: At fair value [member]; Financial assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2021-01-01
-Paragraph 25
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_25&doctype=Standard
-URIDate 2021-03-24

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X

- Definition

The gains (losses) on exchange differences, recognised in other comprehensive income, on the fair value measurement of assets. [Refer: At fair value [member]; Other comprehensive income]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 13
-IssueDate 2021-01-01
-Paragraph 93
-Subparagraph e
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93_e_ii&doctype=Standard
-URIDate 2021-03-24

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- References

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- Definition

The decrease in the fair value measurement of assets resulting from exercise of warrants.

+ References

No definition available.

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