The ownership percentage of one individual in a related party.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Face (par) amount of debt instrument at time of issuance.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Portion of the carrying amount as of the balance sheet date of obligations due all related parties that is payable after one year or beyond the normal operating cycle if longer.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Aug. 10, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Apr. 26, 2017
RELATED PARTY TRANSACTIONS
Accounts payable		$ 37,608		$ 37,608		$ 34,880
Long-term debt from related party (note 18)		24,566		24,566
Term Loan
RELATED PARTY TRANSACTIONS
Face amount	$ 50,000
Debt Instrument Term	3 years
Interest Expense		700
Rob McEwen \| Term Loan
RELATED PARTY TRANSACTIONS
Long-term debt from related party (note 18)	$ 25,000
Entity Affiliated With Related Party \| Lexam L.P.
RELATED PARTY TRANSACTIONS
Expense (income)		28		59	$ 90
Ownership percentage of individual							27.00%
Entity Affiliated With Related Party \| Lexam L.P. \| Accounts payable
RELATED PARTY TRANSACTIONS
Outstanding accounts payable (receivable)		13		13
Entity Affiliated With Related Party \| Lexam VG Gold
RELATED PARTY TRANSACTIONS
Expense (income)					(33)
Entity Affiliated With Related Party \| Noblegen Inc.
RELATED PARTY TRANSACTIONS
Expense (income)		7	$ 40	26	40
Entity Affiliated With Related Party \| Noblegen Inc. \| Accounts payable
RELATED PARTY TRANSACTIONS
Outstanding accounts payable (receivable)		8		8
Entity Affiliated With Related Party \| REVlaw
RELATED PARTY TRANSACTIONS
Expense (income)		50	$ 86	135	$ 169
Entity Affiliated With Related Party \| REVlaw \| Accounts payable
RELATED PARTY TRANSACTIONS
Outstanding accounts payable (receivable)		$ 84		$ 84		17
Entity Affiliated With Related Party \| Inventus \| Accounts payable
RELATED PARTY TRANSACTIONS
Outstanding accounts payable (receivable)						$ (36)
Lexam
RELATED PARTY TRANSACTIONS
Interest acquired (as a percent)							100.00%