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Business Combinations - Total acquisition consideration (Details) | 1 Months Ended |
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Feb. 28, 2018 | Dec. 23, 2015
Globe Specialty Metals Inc |  |
Acquisition-date fair value of total consideration transferred [abstract] |  |
Percentage of equity interests acquired |  | 100.00%
Glencore | Major business combination |  |
Acquisition-date fair value of total consideration transferred [abstract] |  |
Period for marketing and procurement of manganese ores | 10 years |

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- Definition The period for marketing and procurement of manganese ores to supply plants. + References No definition available. + Details
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- Definition The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2018-01-01 -Paragraph B64 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2018-03-01&anchor=para_B64_c&doctype=Appendix&seq=2 -URIDate 2018-03-16 + Details
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- Details
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- Details
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