XML 98 R64.htm IDEA: XBRL DOCUMENT
v3.8.0.1

MARKETABLE SECURITIES (Details) - USD ($) $ in Thousands | 2 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 23, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure Of Detailed Information About Marketable Securities [Abstract] |  |  |
Balance, beginning of year | $ 114,001 | $ 148,944 | $ 88,184
Additions |  | 5,295 | 7,329
Additions from the acquisition of Seabee Gold Operation (note 3) |  | 0 | 351
Disposals | $ (24,983) | (72,132) | (5,327)
Fair value adjustments |  | $ 31,894 | $ 58,407

X
- Definition The amount of current financial assets. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_25&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_CurrentFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Additions From Acquisitions, Marketable Securities + References No definition available. + Details
Name: | ssrm_AdditionsFromAcquisitionsMarketableSecurities
Namespace Prefix: | ssrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Additions Other Than Those Through Business Combinations, Marketable Securities + References No definition available. + Details
Name: | ssrm_AdditionsOtherThanThoseThroughBusinessCombinationsMarketableSecurities
Namespace Prefix: | ssrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disclosure Of Detailed Information About Marketable Securities [Abstract] + References No definition available. + Details
Name: | ssrm_DisclosureOfDetailedInformationAboutMarketableSecuritiesAbstract
Namespace Prefix: | ssrm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disposals, Marketable Securities + References No definition available. + Details
Name: | ssrm_DisposalsMarketableSecurities
Namespace Prefix: | ssrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Gains (Losses) On Fair Value Adjustment, Marketable Securities + References No definition available. + Details
Name: | ssrm_GainsLossesOnFairValueAdjustmentMarketableSecurities
Namespace Prefix: | ssrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration