XML 46 R34.htm IDEA: XBRL DOCUMENT
v3.8.0.1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Disclosure Of Significant Accounting Policies [Abstract] |
Plant and equipment | The major categories of plant and equipment are depreciated on a straight-line basis using the estimated lives indicated below:
Computer equipment | 3 - 7 years
Furniture and fixtures | 7 years
Vehicles | 2 - 5 years
Mining equipment | 5 - 9 years
Mobile equipment components | 2 - 9 years
Buildings | LOM
Mine plant equipment | LOM
Underground infrastructure | LOM
Leasehold improvements | Lease term

X
- Definition Disclosure of significant accounting policies [Abstract] + References No definition available. + Details
Name: | ssrm_DisclosureOfSignificantAccountingPoliciesAbstract
Namespace Prefix: | ssrm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Property, plant and equipment [Table Text Block] + References No definition available. + Details
Name: | ssrm_PropertyplantandequipmentTableTextBlock
Namespace Prefix: | ssrm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration