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SHARE CAPITAL (Details Textual) $ / shares in Units, shares in Thousands, $ in Millions		1 Months Ended	12 Months Ended
	Mar. 10, 2017 $ / shares shares	Mar. 31, 2017 USD ($)	Dec. 31, 2018 USD ($) shares	Dec. 31, 2018 CAD ($) shares	Dec. 31, 2017 USD ($) shares	Dec. 31, 2017 CAD ($) shares	Dec. 31, 2016 shares
Share capital [Line Items]
Number of shares outstanding | shares			579,115	579,115	578,636	578,636	513,709
Weighted average share price				$ 2.32		$ 4.22
Number Of Common Shares Issued On Equity Offering | shares	61,700
Share Price | $ / shares	$ 2.80
Gross Proceeds From Issuance Of Ordinary Shares		$ 172.9
Share issue related cost		8.2
Deferred tax expense (income)		$ 1.9	$ (29.3)		$ (88.4)
Expense from share-based payment transactions with employees			$ 0.7		$ 5.1

X

- Definition

The amount of tax expense (income) relating to changes in deferred tax liabilities and deferred tax assets. [Refer: Deferred tax assets; Deferred tax liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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X

- Definition

The amount of expense from share-based payment transactions with employees.

+ References

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X

- Definition

The number of shares that have been authorised and issued, reduced by treasury shares held. [Refer: Treasury shares]

+ References

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X

- Definition

The amount of cost related to the issuance of shares.

+ References

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- Definition

The weighted average share price. [Refer: Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2018-01-01
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- Definition

The gross proceeds from issuance of ordinary shares before deducting equity issuance cost and deferred tax recovery.

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- Definition

The number of common shares issued on equity offering.

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X

- Definition

The price of the common stock in open market

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