Trade Receivables – Net (Details) - Schedule of Allowance for Doubtful Accounts - MXN ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Schedule of Allowance for Doubtful Accounts [Abstract]
Balance at beginning of year	$ 226,432	$ 224,569
Provisions	96,343	25,163
Cancellation		(834)
Account recoveries	(20,236)
Translations effects	(18,982)	(22,466)
Balance at end of year	$ 283,557	$ 226,432

No definition available.

Name:	ifrs-full_ReconciliationOfChangesInAllowanceAccountForCreditLossesOfFinancialAssetsAbstract
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The amount of allowance account for credit losses account recoveries.

No definition available.

Name:	simecb_AllowanceAccountForCreditLossesAccountRecoveries
Namespace Prefix:	simecb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets]

No definition available.

Name:	simecb_AllowanceAccountForCreditLossesOfFinancialAsset
Namespace Prefix:	simecb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of allowance account for credit losses provisions.

No definition available.

Name:	simecb_AllowanceAccountForCreditLossesProvisions
Namespace Prefix:	simecb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets]

No definition available.

Name:	simecb_AllowanceAccountForCreditLossesofFinancialAssets
Namespace Prefix:	simecb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The increase (decrease) in allowance account for credit losses of financial assets resulting from cancellation.

No definition available.

Name:	simecb_IncreaseDecreaseThroughCancellationForCreditLossesOfFinancialAssets
Namespace Prefix:	simecb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration