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Financial Income (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finance income		$ 9,686	$ 5,517	$ 6,830
Special Mining Burden [Member]
Finance income	[1]	18,574	0	0
Other financial income [Member]
Finance income		$ 9,515	$ 5,350	$ 954
[1] Represents interest related to the GEM refund from the period October 2012 through December 2013 of US$18.6 million (see note 13(d)).

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- Definition

The amount of income associated with interest and other financing activities of the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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