Contingencies (Tables)

6 Months Ended

Jun. 30, 2024

Commitments and Contingencies Disclosure [Abstract]

Schedule of Contingencies Reserve Balance

For the three and six months ended June 30, 2024 the following activity was recorded in connection with the New Idria Mercury Mine:

	For the Quarter Ended June 30,						For the Six Months Ended June 30,
	2024			2023			2024			2023
Beginning reserve balance	$	12,315		$	10,724		$	13,182		$	11,855
Changes in estimated environmental liability		800			1,900			800			3,500
Payments made (3)		(623	)		(542	)		(1,490	)		(3,273	)
Ending reserve balance (1)	$	12,492		$	12,082		$	12,492		$	12,082
Beginning receivable balance	$	7,020		$	6,224		$	7,245		$	6,000
Changes in estimated insurance recovery		700			100			1,000			1,200
Insurance recovery reimbursements		(606	)		(162	)		(1,131	)		(1,038	)
Ending receivable balance (2)	$	7,114		$	6,162		$	7,114		$	6,162

(1) As of June 30, 2024, Buckhorn has a total ending reserve balance of $12.5 million related to the New Idria Mine, of which $6.4 million is classified in Other current liabilities and $6.1 million in Other liabilities (long-term).

(2) As of June 30, 2024, Buckhorn has a total receivable balance related to the probable insurance recovery of $7.1 million, of which $2.9 million

is classified in Other accounts receivable and $4.2 million is classified in Other (long-term).

(3) Payments made for the six months ended June 30, 2023 include a $1.9 million payment related to a settlement agreement with the EPA to resolve the past costs claim, which Buckhorn paid in the first quarter of 2023.