Note 9 - Derivative Instruments (Tables)

12 Months Ended

Dec. 31, 2022

Notes To Financial Statements [Abstract]

Schedule of Foreign Exchange Contracts, Statement of Financial Position

As of December 31, 2022 and 2021, we recorded the following balances for the fair value of the contracts (in millions):

	December 31,
Balance sheet line item:	2022		2021
Other current assets	$	1.1	$	2.7
Other non-current assets		0.4		2.5
Current derivative liabilities		4.0	—
Non-current derivative liabilities		3.6		0.0

Schedule of Notional Amounts of Outstanding Derivative Positions

The following tables summarize the quantities of metals committed under forward sales contracts at December 31, 2022 and 2021:

December 31, 2022	Ounces/pounds under contract (in 000's)								Average price per ounce/pound
	Silver		Gold		Zinc		Lead		Silver		Gold		Zinc		Lead
	(ounces)		(ounces)		(pounds)		(pounds)		(ounces)		(ounces)		(pounds)		(pounds)
Contracts on provisional sales
2023 settlements		3,124		8		18,629		11,960	$	21.55	$	1,795	$	1.38	$	0.98
Contracts on forecasted sales
2023 settlements		—		—		37,533		75,618	N/A		N/A		$	1.34	$	1.00
2024 settlements		—		—		—		45,856	N/A		N/A		N/A		$	0.99

December 31, 2021	Ounces/pounds under contract (in 000's)								Average price per ounce/pound
	Silver		Gold		Zinc		Lead		Silver		Gold		Zinc		Lead
	(ounces)		(ounces)		(pounds)		(pounds)		(ounces)		(ounces)		(pounds)		(pounds)
Contracts on provisional sales
2022 settlements		1,814		6		13,371		4,575	$	23.02	$	1,812	$	1.39	$	0.96
Contracts on forecasted sales
2022 settlements		—		—		57,706		59,194	N/A		N/A		$	1.28	$	0.98
2023 settlements		—		—		76,280		71,650	N/A		N/A		$	1.29	$	1.00

Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location

At December 31, 2022 and 2021, we recorded the following balances for the fair value of forward and put option contracts held at that time (in millions):

	December 31, 2022								December 31, 2021
Balance sheet line item:	Contracts in an asset position		Contracts in a liability position			Net asset (liability)			Contracts in an asset position		Contracts in a liability position			Net asset (liability)
Other current assets	$	1.2	$	—		$	1.2		$	—	$	—		$	—
Other non-current assets		0.1		—			0.1			—		—			—
Current derivatives liability		0.0		(12.1	)		(12.1	)		0.7		(20.1	)		(19.4	)
Non-current derivatives liability		0.0		(2.5	)		(2.5	)		0.4		(18.9	)		(18.5	)