Fair Value of Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 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 March 31, 2024 and December 31, 2023 (in thousands):

			Estimated Fair Value Measurements at March 31, 2024
	Carrying Value as of March 31, 2024		Total Fair Value		Level 1		Level 2		Level 3
Assets:
Cash and cash equivalents	$	126,497	$	126,497	$	126,497	$	—	$	—
Restricted cash and investments		35,725		35,725		35,725		—		—
Liabilities:
Borrowings under exchange credit facility	$	906,712	$	932,328	$	—	$	932,328	$	—
10.500% Public Second Lien Notes due 2028		286,521		292,726		—		292,726		—
9.500% Private Second Lien Notes due 2028		239,142		241,917		—		241,917		—
6.00% Senior Notes due 2026		110,858		109,268		—		109,268		—
6.50% Exchangeable Senior Notes due 2026		230,000		394,399		—		394,399		—

			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		—