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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2018
Summary of Significant Accounting Policies [Abstract] |
Disclosure of subsidiaries | The principal subsidiaries of the Company and their geographic locations at December 31, 2018 were as follows:
Subsidiary |  | Location |  | Ownership Interest |  | Accounting |  | Operations and Development Projects Owned
Pan American Silver Huaron S.A. |  | Peru |  | 100 | % |  | Consolidated |  | Huaron mine
Compañía Minera Argentum S.A. |  | Peru |  | 92 | % |  | Consolidated |  | Morococha mine
Minera Corner Bay S.A. de C.V. |  | Mexico |  | 100 | % |  | Consolidated |  | Alamo Dorado mine
Plata Panamericana S.A. de C.V. |  | Mexico |  | 100 | % |  | Consolidated |  | La Colorada mine
Compañía Minera Dolores S.A. de C.V. |  | Mexico |  | 100 | % |  | Consolidated |  | Dolores mine
Minera Tritón Argentina S.A. |  | Argentina |  | 100 | % |  | Consolidated |  | Manantial Espejo mine & Cap-Oeste Sur Este ("COSE") project
Minera Joaquin S.R.L. |  | Argentina |  | 100 | % |  | Consolidated |  | Joaquin project
Pan American Silver (Bolivia) S.A. |  | Bolivia |  | 95 | % |  | Consolidated |  | San Vicente mine
Minera Argenta S.A. |  | Argentina |  | 100 | % |  | Consolidated |  | Navidad Project
Disclosure of joint ventures | The principal subsidiaries of the Company and their geographic locations at December 31, 2018 were as follows:
Subsidiary |  | Location |  | Ownership Interest |  | Accounting |  | Operations and Development Projects Owned
Pan American Silver Huaron S.A. |  | Peru |  | 100 | % |  | Consolidated |  | Huaron mine
Compañía Minera Argentum S.A. |  | Peru |  | 92 | % |  | Consolidated |  | Morococha mine
Minera Corner Bay S.A. de C.V. |  | Mexico |  | 100 | % |  | Consolidated |  | Alamo Dorado mine
Plata Panamericana S.A. de C.V. |  | Mexico |  | 100 | % |  | Consolidated |  | La Colorada mine
Compañía Minera Dolores S.A. de C.V. |  | Mexico |  | 100 | % |  | Consolidated |  | Dolores mine
Minera Tritón Argentina S.A. |  | Argentina |  | 100 | % |  | Consolidated |  | Manantial Espejo mine & Cap-Oeste Sur Este ("COSE") project
Minera Joaquin S.R.L. |  | Argentina |  | 100 | % |  | Consolidated |  | Joaquin project
Pan American Silver (Bolivia) S.A. |  | Bolivia |  | 95 | % |  | Consolidated |  | San Vicente mine
Minera Argenta S.A. |  | Argentina |  | 100 | % |  | Consolidated |  | Navidad Project
Summary of classification and measurement of financial assets before and after adoption of IFR 9 | The following table summarizes the classification and measurement of the Company’s financial assets prior to January 1, 2018 in accordance with IAS 39, compared to the new classification as of January 1, 2018, in accordance with IFRS 9:
Financial Asset |  | IAS 39 Classification / Measurement |  | IFRS 9 Classification and Measurement
Cash and cash equivalents |  | Loans and receivables / Amortized cost |  | Amortized cost
Short-term investments - equity securities |  | Available-for-sale / FVTOCI |  | FVTPL
Short-term investments - other than equity securities |  | Available-for-sale / FVTOCI |  | FVTOCI
Trade receivables from provisional concentrates sales |  | FVTPL |  | FVTPL
Receivable not arising from sale of metal concentrates |  | Loans and receivables / Amortized cost |  | Amortized cost
Derivative financial assets |  | Held-for-trading / FVTPL |  | FVTPL

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- Definition The disclosure of joint ventures. [Refer: Joint ventures [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 b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_B4_b&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
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