XML 109 R70.htm IDEA: XBRL DOCUMENT
v3.8.0.1

SUBSEQUENT EVENT (Narrative) (Details) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Jan. 17, 2018 | Jan. 03, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Subsequent events [Line Items] |  |  |  |
Proceeds from sales of investments other than investments accounted for using equity method |  |  | $ 14,352 | $ 12,774
Acquisition of mineral, royalty and other interests |  |  | $ 4,409 | $ 10,806
Other disposals of assets [member] |  |  |  |
Subsequent events [Line Items] |  |  |  |
Proceeds from sales of investments other than investments accounted for using equity method |  | $ 18,300 |  |
Major purchases of assets [member] |  |  |  |
Subsequent events [Line Items] |  |  |  |
Net smelter return royalty percentage | 2.00% |  |  |
Acquisition of mineral, royalty and other interests | $ 45,000 |  |  |

X
- Definition The cash inflow from sales of investments other than investments accounted for using the equity method. [Refer: Investments accounted for using equity method; Investments other than investments accounted for using equity method] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2016-01-13 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2016-03-30&anchor=para_16&doctype=Standard -URIDate 2016-03-31 + Details
Name: | ifrs-full_ProceedsFromSalesOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Acquisition of property, plant, equipment, exploration and evaluation assets. + References No definition available. + Details
Name: | sand_AcquisitionOfPropertyPlantAndEquipmentAndExplorationAndEvaluationAssets
Namespace Prefix: | sand_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Net smelter return royalty percentage . + References No definition available. + Details
Name: | sand_NetSmelterReturnRoyaltyPercentage
Namespace Prefix: | sand_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | sand_SubsequentEventsLineItems
Namespace Prefix: | sand_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ifrs-full_OtherDisposalsOfAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ifrs-full_MajorPurchasesOfAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |