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TRADE AND OTHER PAYABLES (Tables)
12 Months Ended
Dec. 31, 2018
Trade and other payables [abstract]  
Schedule of trade and other payables

 
December 31, 2018

December 31, 2017

 
$

$

Trade payables
15,896

16,740

Accrued liabilities
43,589

29,574

Accrued royalties
4,542

6,276

Derivative liabilities
2,798


Income taxes payable
8,463

4,385

Accrued interest on convertible notes (note 14(a))
3,178

3,178

 
78,466

60,153