Note 8 - Derivative Instruments (Tables)

9 Months Ended

Sep. 30, 2025

Table Text Block [Abstract]

Schedule of Foreign Exchange Contracts, Statement of Financial Position

As of September 30, 2025 and December 31, 2024, we recorded the following balances for the fair value of the foreign currency forward contracts (in millions):

	September 30,	December 31,
Balance sheet line item:	2025	2024
Other current assets	$0.7	$—
Other current liabilities	(2.0)	(8.2)
Other non-current liabilities	(0.2)	(2.0)

Schedule of Notional Amounts of Outstanding Derivative Positions

The following tables summarize the quantities of metals committed under forward metals contracts at September 30, 2025 and December 31, 2024:

September 30, 2025	Ounces/pounds under contract (in 000's except gold)								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
2025 settlements		780		—		16,424		11,905	$	39.15	N/A	$	1.39	$	1.00
2026 settlements		—		—		3,748		—	N/A		N/A	$	1.40	N/A
Contracts on forecasted sales
2025 settlements		—		—		2,425		4,850	N/A		N/A	$	1.36	$	0.99
2026 settlements		—		—		37,644		53,903	N/A		N/A	$	1.33	$	1.03

December 31, 2024	Ounces/pounds under contract (in 000's except gold)								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
2025 settlements		1,535		2		20,834		14,661	$	31.46	$	2,673	$	1.40	$	0.97
Contracts on forecasted sales
2025 settlements		—		—		59,194		47,840	N/A		N/A		$	1.39	$	0.99
2026 settlements		—		—		6,283		52,911	N/A		N/A		$	1.41	$	1.03

Schedule of the Quantities of Metals Committed

The following table summarize the quantities of silver ounces committed under collars at September 30, 2025.

Settlement Period	Production Protected		Minimum Price		Maximum Price
	(ounces)		($)		($)
Contracts on provisional sales
2025 settlements		25,000		39.00		45.50
Contracts on forecasted sales
2025 settlements		690,000		30.00		40.08
2026 settlements		1,300,000		33.13		53.82

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

We recorded the following balances for the fair value of the forward metals and collar contracts as of September 30, 2025 and December 31, 2024 (in millions):

	September 30,	December 31,
Balance sheet line item:	2025	2024
Other current assets	$2.1	$11.5
Other non-current assets	1.0	6.6
Other current liabilities	(6.3)	—
Other non-current liabilities	(0.2)	—