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Inventory
12 Months Ended
Dec. 31, 2022
Disclosure of inventories [Abstract]  
Inventory
6.INVENTORY
December 31, 2022December 31, 2021
In-process precious metals
$159.4 $116.2 
Ore in stockpiles
10.0 25.4 
Parts and supplies
57.2 61.0 
Dore, and refined precious metals7.6 7.0 
234.2 209.6 
Less: Long-term inventory
— (10.6)
$234.2 $199.0 
Long term inventory consists of long-term stockpiles which are expected to be recovered after one year.
The amount of inventories recognized in mining and processing costs for the year ended December 31, 2022, was $400.5 million (December 31, 2021 - $360.4 million). The amount of inventories recognized in amortization costs for the year ended December 31, 2022, was $171.5 million (December 31, 2021 - $170.9 million).
The Company assesses the net realizable value of inventory at each reporting period. In the second and third quarters of 2022, given a decrease in the gold price at the period ends and higher costs at the Mulatos operation, the Company recorded a $33.9 million ($22.4 million after tax) cumulative reduction in the carrying value of the in-process precious metals inventory at Mulatos. This was comprised of $27.6 million related to mining and processing costs and $6.3 million related to amortization (December 31, 2021 - $nil).