Fair Value of Assets and Liabilities (Tables)

9 Months Ended

Sep. 30, 2024

Fair Value Disclosures [Abstract]

Carrying Value and Estimated Fair Value of Financial Instruments

The following tables present the carrying values of those financial instruments and the estimated corresponding fair values at September 30, 2024 and December 31, 2023 (in thousands):

			Estimated Fair Value Measurements at September 30, 2024
	Carrying Value as of September 30, 2024		Total Fair Value		Level 1		Level 2		Level 3
Assets:
Cash and cash equivalents	$	70,635	$	70,635	$	70,635	$	—	$	—
Restricted cash and investments		35,944		35,944		35,944		—		—
Liabilities:
Borrowings under credit agreement	$	413,750	$	420,526	$	—	$	420,526	$	—
8.625% Senior Secured Notes due 2029		650,000		676,358		—		676,358		—
10.250% Senior Notes due 2031		625,000		667,388		—		667,388		—
6.50% Exchangeable Senior Notes due 2026		300		477		—		477		—

			Estimated Fair Value Measurements at December 31, 2023
	Carrying Value as of December 31, 2023		Total Fair Value		Level 1		Level 2		Level 3
Assets:
Cash and cash equivalents	$	93,971	$	93,971	$	93,971	$	—	$	—
Restricted cash and investments		65,896		65,896		65,896		—		—
Liabilities:
Borrowings under exchange credit facility	$	906,712	$	926,445	$	—	$	926,445	$	—
10.500% Public Second Lien Notes due 2028		286,521		293,049		—		293,049		—
9.500% Private Second Lien Notes due 2028		239,142		231,692		—		231,692		—
5.875% Senior Notes due 2024		23,253		22,946		—		22,946		—
6.00% Senior Notes due 2026		110,858		106,541		—		106,541		—
6.50% Exchangeable Senior Notes due 2026		230,000		319,920		—		319,920		—