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Background of companies included in consolidation(Details 1) | 12 Months Ended
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Dec. 31, 2017
Pampa Group [Member] |
Background of companies included in consolidation [Line Items] |
Ownership interest % | 29.97%
Pampa Group [Member] | Sociedad de Inversiones Pampa Calichera S.A. [Member] |
Background of companies included in consolidation [Line Items] |
Tax ID No. | 96,511,530-7
Ownership interest % | 19.72%
Pampa Group [Member] | Potasios de Chile S.A. [Member] |
Background of companies included in consolidation [Line Items] |
Tax ID No. | 76,165,311-5
Ownership interest % | 6.91%
Pampa Group [Member] | Inversiones Global Mining Chile Limitada [Member] |
Background of companies included in consolidation [Line Items] |
Tax ID No. | 96,863,960-9
Ownership interest % | 3.34%
Kowa Group [Member] |
Background of companies included in consolidation [Line Items] |
Ownership interest % | 2.12%
Kowa Group [Member] | Inversiones la Esperanza Chile Ltda. [Member] |
Background of companies included in consolidation [Line Items] |
Tax ID No. | 79,798,650-k
Ownership interest % | 1.43%
Kowa Group [Member] | Kowa Co Ltd. [Member] |
Background of companies included in consolidation [Line Items] |
Tax ID No. | 59,046,730-8
Ownership interest % | 0.30%
Kowa Group [Member] | Kochi S.A. [Member] |
Background of companies included in consolidation [Line Items] |
Tax ID No. | 96,518,570-4
Ownership interest % | 0.30%
Kowa Group [Member] | La Esperanza Delaware Corporation [Member] |
Background of companies included in consolidation [Line Items] |
Tax ID No. | 59,023,690-k
Ownership interest % | 0.09%

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