Exit Costs (Tables)

12 Months Ended

Dec. 31, 2023

Restructuring and Related Activities [Abstract]

Summary of Exit and Termination Costs

The following summarizes our exit costs for the three years ended December 31, 2023, 2022 and 2021 (in thousands):

	Year Ended December 31,
	2023		2022		2021
Severance costs	$	—	$	—	$	567
Transportation contract capacity releases (including    accretion of discount)		345		579		754
Divestiture contract obligation (including accretion    of discount)		99,595		69,758		20,340
Total exit costs	$	99,940	$	70,337	$	21,661

Exit and Termination Costs Included in Accrued Liabilities in Consolidated Balance Sheet

The following details the accrued exit cost liability activity for the years ended December 31, 2023 and 2022 (in thousands):

	Exit Costs			Termination Costs
Balance at December 31, 2021	$	423,742		$	10
Accrued contract obligations-changes in estimate		26,183			—
Accretion of discount		44,154			—
Payments		(98,399	)		(10	)
Balance at December 31, 2022		395,680		$	—
Accrued contract obligations-changes in estimate		57,735			—
Accretion of discount		42,205			—
Payments		(95,631	)		—
Balance at December 31, 2023	$	399,989		$	—