Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Disclosure Of Significant Accounting Policies [Abstract]

Disclosure of detailed information about property, plant and equipment useful life

Upon entering commercial production stage, capitalized costs associated with the acquisition of the mineral property or the development of the mine, are amortized using the various methods based in the asset categories as follows:

Corporate assets	two to seven years, straight line
Vehicles	three to five years, straight line
Production and related equipment	units of production over proven and probable reserves
General infrastructure	units of production over proven and probable reserves
Earthmoving equipment	straight line over shorter of life of mine or life of the asset
Mineral properties	units of production over proven and probable reserves
Assets under construction	not depreciated until ready for use