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Summary of significant accounting policies (Tables) | 12 Months Ended
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Dec. 31, 2018
Disclosure Of Significant Accounting Policies [Abstract] |
Disclosure of significant subsidiaries | The Company’s most significant wholly owned and partially owned subsidiaries are presented below:
|  | % interest
- | Fekola SA (“Fekola”) (Note 8) | 80
- | B2Gold Namibia (Pty) Ltd. (“Otjikoto”) | 90
- | Philippines Gold Processing & Refining Corporation (“Masbate”) | 100
- | Desarrollo Minero de Nicaragua, S.A. (“Libertad”) | 100
- | Triton Minera S.A. (“Limon”) | 100
- | Kiaka SA (“Kiaka”) | 81

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- Definition The disclosure of subsidiaries. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2017-01-01 -Paragraph 17 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2017-03-01&anchor=para_17_b&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2017-01-01 -Paragraph 16 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2017-03-01&anchor=para_16_b&doctype=Standard -URIDate 2017-03-09 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2017-01-01 -Paragraph B4 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_B4_a&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
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