ACQUISITIONS - Allocation purchase price (Details) - Santa Gertrudis Project $ in Thousands	Nov. 01, 2017 USD ($)
Total purchase price:
Cash paid for acquisition	$ 71,999
Loan obligation set-off	7,621
Total purchase price to allocate	79,620
Fair value of assets acquired and liabilities assumed:
Mining properties	79,201
Cash and cash equivalents	10
Other current assets	1,214
Accounts payable and accrued liabilities	(805)
Net assets acquired	$ 79,620

Represents the extinguishment of a loan advanced.

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The amount recognised as of the acquisition date for mining properties acquired in a business combination based on managements estimates of fair values.

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The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Business combinations [member]]

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The amount recognised as of the acquisition date for cash and cash equivalents acquired in a business combination. [Refer: Cash and cash equivalents; Business combinations [member]]

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The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Business combinations [member]]

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The amount recognised as of the acquisition date for net identifiable assets acquired or liabilities assumed in a business combination. [Refer: Business combinations [member]]

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The amount recognised as of the acquisition date for trade and other payables assumed in a business combination. [Refer: Trade and other payables; Business combinations [member]]

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