Trade and other receivables (Details) - USD ($) $ in Millions	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
TRADE AND OTHER RECEIVABLES [Abstract]
Trade receivables	$ 4.4		$ 5.3
Sales tax receivable	11.0		7.9
Unsettled provisionally priced concentrate derivatives and swap contracts	(1.8)		(0.6)
Proceeds due from sale of Mesquite	0.0	$ 12.8	12.8
Other	0.5		1.0
Total trade and other receivables	$ 14.1		$ 26.4

The amount receivable by the entity that it does not separately disclose in the same statement or note.

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- Definition

The amount of receivables from taxes other than income tax. Income taxes include all domestic and foreign taxes that are based on taxable profits. Income taxes also include taxes, such as withholding taxes, that are payable by a subsidiary, associate or joint arrangement on distributions to the reporting entity.

+ References

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

The amount of current trade receivables and current other receivables. [Refer: Current trade receivables; Other current receivables]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount due from customers for goods and services sold.

+ References

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- Definition

The amount of receivables arising from the sale of mesquite including income tax refunded receivable.

+ References

No definition available.

+ Details

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- Definition

The amount receivable by the entity that is related to unsettled provisionally priced concentrate derivatives and copper swap contracts.

+ References

No definition available.

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- References

No definition available.

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