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Employee Benefits - Schedule of Net Cost for the Period Booked in Profit and loss (Details) - Net cost [Member] - MXN ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Schedule of Net Cost for the Period Booked in Profit and loss [Line Items] |  |  |
Service cost | $ 16,483 | $ 15,206 | $ 10,998
Net interest | 20,391 | 18,632 | 12,101
Labor cost of past services | (13,880) | (2,528) | (11,244)
Net Cost for the period | 22,994 | $ 31,310 | $ 11,855
Retirement benefits [Member] |  |  |
Schedule of Net Cost for the Period Booked in Profit and loss [Line Items] |  |  |
Service cost | 6,724 |  |
Net interest | 9,550 |  |
Labor cost of past services | (14,150) |  |
Net Cost for the period | 2,124 |  |
Termination benefits [Member] |  |  |
Schedule of Net Cost for the Period Booked in Profit and loss [Line Items] |  |  |
Service cost | 9,759 |  |
Net interest | 10,841 |  |
Labor cost of past services | 270 |  |
Net Cost for the period | $ 20,870 |  |

X
- Definition The amount of expense (income) resulting from past service cost. Past service cost is the change in the present value of the defined benefit obligation for employee service in prior periods, resulting from a plan amendment (the introduction or withdrawal of, or changes to, a defined benefit plan) or a curtailment (a significant reduction by the entity in the number of employees covered by a plan). [Refer: Post-employment benefit expense in profit or loss, defined benefit plans; Defined benefit plans [domain]] [Contrast: Increase (decrease) in net defined benefit liability (asset) resulting from past service cost] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 135 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_135_b&doctype=Standard -URIDate 2024-03-27 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of other comprehensive income, net of tax, resulting from the return on plan assets, excluding amounts included in interest expense (income) arising from defined benefit plans. The return on plan assets is interest, dividends and other revenue derived from the plan assets, together with realised and unrealised gains or losses on the plan assets, less any costs of managing plan assets and less any tax payable by the plan itself, other than tax included in the actuarial assumptions used to measure the present value of the defined benefit obligation. [Refer: Other comprehensive income; Defined benefit plans [domain]; Plan assets [member]; Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans] [Contrast: Decrease (increase) in net defined benefit liability (asset) resulting from return on plan assets excluding interest income or expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 135 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_135_b&doctype=Standard -URIDate 2024-03-27 + Details
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Period Type: | duration

X
- Definition The amount of net cost for the period. + References No definition available. + Details
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- References No definition available. + Details
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- Definition The amount of service cost. + References No definition available. + Details
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Namespace Prefix: | simecb_
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Period Type: | duration

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- Details
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- Details
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- Details
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