Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2023

Commitments and Contingencies Disclosure [Abstract]

Schedule of Restricted Cash Deposits

Amounts included in restricted cash provide collateral to secure the following obligations:

	September 30, 2023		December 31, 2022
Workers’ compensation and black lung obligations	$	71,988	$	15,334
Reclamation-related obligations	840		3,220
Financial payments and other performance obligations	10,176		10,387
Contingent Revenue Obligation escrow	—		24,547
Total restricted cash	83,004		53,488
Less current portion	—		(24,547)
Restricted cash, net of current portion	$	83,004	$	28,941

Schedule of Restricted Investments and Deposit Assets

Amounts included in restricted investments provide collateral to secure the following obligations:

	September 30, 2023		December 31, 2022
Workers’ compensation and black lung obligations	$	33,866	$	72,136
Reclamation-related obligations	32,532		31,718
Financial payments and other performance obligations	4,871		1,881
Total restricted investments (1)	$	71,269	$	105,735

(1) Classified as long-term trading securities as of September 30, 2023 and December 31, 2022.

Amounts included in deposits provide collateral to secure the following obligations:

	September 30, 2023		December 31, 2022
Reclamation-related obligations	$	—	$	102
Financial payments and other performance obligations	—		391
Other operating agreements (1)	7,605		85,618
Total deposits	7,605		86,111
Less current portion	(6,736)		(84,748)
Total deposits, net of current portion (2)	$	869	$	1,363

(1) Included $6,736 and $84,748 related to the Company’s dividend payable as of September 30, 2023 and December 31, 2022, respectively. Refer to Note 6 for additional information.

(2) Included within Other non-current assets on the Company’s Condensed Consolidated Balance Sheets.