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INVENTORIES: (Tables)

12 Months Ended

Dec. 31, 2019

INVENTORIES:

Schedule of inventories

​

​	​	​	​	​	​	​
​	​	At December 31,
(in millions)	​	2019			2018
Inventory, current:	​	​	​	​	​	​
Metals at average cost:	​	​	​	​	​	​
Finished goods	​	$	87.2	​	$	69.6
Work-in-process	​		259.7	​		256.8
Ore stockpiles on leach pads	​	​	358.4	​	​	328.0
Supplies at average cost	​		363.2	​		378.3
Total current inventory	​	$	1,068.5	​	$	1,032.7
Inventory, long-term:	​	​	​	​	​	​
Ore stockpiles on leach pads	​	$	1,230.3	​	$	1,177.4

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- Definition

Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process current and noncurrent.

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No definition available.

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