Contingencies (Tables)

3 Months Ended

Mar. 31, 2025

Commitments and Contingencies Disclosure [Abstract]

Schedule of Contingencies Reserve Balance

For the quarter ended March 31, 2025 the following undiscounted activity was recorded in connection with the New Idria Mercury Mine:

	For the Quarter Ended March 31,
	2025			2024
Beginning reserve balance	$	12,425		$	13,182
Changes in estimated environmental liability		—			—
Payments made		(706	)		(867	)
Ending reserve balance (1)	$	11,719		$	12,315
Beginning receivable balance	$	8,404		$	7,245
Changes in estimated insurance recovery		—			300
Insurance recovery reimbursements		(917	)		(525	)
Ending receivable balance (2)	$	7,487		$	7,020

(1) As of March 31, 2025, Buckhorn has a total ending reserve balance of $11.7 million related to the New Idria Mine, of which $5.3 million is classified in Other current liabilities and $6.4 million in Other liabilities (long-term).

(2) As of March 31, 2025, Buckhorn has a total receivable balance related to the probable insurance recovery of $7.5 million, of which $3.0 million is classified in Other accounts receivable and $4.5 million is classified in Other assets (long-term).