INCOME TAXES (Narrative) (Details)
$ in Thousands, $ in Millions |
3 Months Ended |
12 Months Ended |
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Mar. 31, 2021
USD ($)
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Dec. 31, 2021
MXN ($)
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Dec. 31, 2021
USD ($)
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Dec. 31, 2019
MXN ($)
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Dec. 31, 2019
USD ($)
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Jun. 30, 2016
MXN ($)
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Jun. 30, 2016
USD ($)
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Oct. 12, 2010
MXN ($)
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| Minera Santa Cruz y Garibaldi SA de CV [Member] |
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| Disclosure Of Income Tax [Line Items] |
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| Tax Assessments |
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$ 122.9
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$ 6,000
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$ 238.0
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| Tax Assessments, taxes owed |
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41.8
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2,000
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| Tax Assessments , inflationary charges |
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17.7
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900
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| Tax Assessments , interest |
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40.4
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2,000
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| Tax Assessments , penalties |
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23.0
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$ 1,100
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| Tax Assessments interest and penalties |
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$ 122.9
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| Tax Assessment forgiveness percentage of penalties |
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100.00%
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100.00%
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| Tax Assessment forgiveness percentage of interest |
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50.00%
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50.00%
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| Tax Assessments , increase in interest charges |
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$ 12.8
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$ 600
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| Tax Assessments , increase in inflationary charges |
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19.1
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900
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| Net assets |
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595
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| Allowance for transferring the shares and assets |
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595
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| Cubo [Member] |
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| Disclosure Of Income Tax [Line Items] |
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| Tax Assessments |
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$ 58.5
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$ 2,900
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| Tax Assessments, taxes owed |
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24.1
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1,200
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| Tax Assessments , inflationary charges |
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3.0
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100
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| Tax Assessments , interest |
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10.4
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500
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| Tax Assessments , penalties |
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$ 21.0
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$ 1,100
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| Tax Assessments , increase in interest charges |
$ 3,500
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9.9
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500
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| Tax Assessments , increase in inflationary charges |
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1.6
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100
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| Re-payment of value added taxes |
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$ 14.7
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$ 600
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