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Other Accrued Liabilities
 6 Months Ended
Jun. 30, 2024
Payables and Accruals [Abstract]  
Other Accrued Liabilities Other Accrued Liabilities
Other accrued liabilities at June 30, 2024 and December 31, 2023 consisted of the following (in thousands):
June 30, 2024December 31, 2023
Accrued payroll and other employee benefits$28,003 $40,533 
Environmental credit obligations (1)163,990 286,904 
Derivative liabilities33,331 27,725 
Deferred revenue24,014 15,220 
Other35,551 51,380 
Total$284,889 $421,762 
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(1)Please read Note 13—Fair Value Measurements for further information. A portion of these obligations are expected to be settled with our RINs assets and other environmental credits, which are presented as Inventories on our condensed consolidated balance sheet and are stated at the lower of cost or net realizable value. The carrying costs of these assets were $160.1 million and $237.6 million as of June 30, 2024 and December 31, 2023, respectively.