Additional information on the consolidated statements of loss - Disclosure of detailed information about revenues (Details) - CAD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Additional Information On Consolidated Statements Of Loss Line Items
Royalty, stream and other interest revenue	$ 392,599	$ 490,472
Royalty interests [Member]
Additional Information On Consolidated Statements Of Loss Line Items
Royalty, stream and other interest revenue	97,146	92,110
Stream interests [Member]
Additional Information On Consolidated Statements Of Loss Line Items
Royalty, stream and other interest revenue	42,976	35,457
Offtake interests [Member]
Additional Information On Consolidated Statements Of Loss Line Items
Royalty, stream and other interest revenue	$ 252,477	$ 362,905

The income arising in the course of an entity's ordinary activities. Income is increases in economic benefits during the accounting period in the form of inflows or enhancements of assets or decreases of liabilities that result in an increase in equity, other than those relating to contributions from equity participants.

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+ Details