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Commitments and Contingencies (Tables)
 6 Months Ended
Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]  
Components of Lease Expense
The components of lease expense are as follows (in thousands):
Three Months Ended
June 30,		Six Months Ended
June 30,
2024202320242023
Lease expense
Operating lease expense$7,110$6,843$14,118$13,589
Variable lease expense (benefit) (1)
350(176)664(307)
Total lease expense$7,460$6,667$14,782$13,282
(1)Represents amounts incurred in excess of the minimum payments required for a certain building lease and for the handling and unloading of railcars for a certain land lease, offset by railcar lease abatements provided by the lessor when railcars are out of service during periods of maintenance or upgrade.
Supplemental Cash Flow Information Related to Operating Leases
Supplemental cash flow information related to operating leases is as follows (in thousands):
Three Months Ended
June 30,		Six Months Ended
June 30,
2024202320242023
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases$7,051 $6,642 $14,039 $12,839 
Right-of-use assets obtained in exchange for lease obligations
Operating leases3,955 6,798 11,118 23,456 
Supplemental Balance Sheet Information Related to Operating Leases
Supplemental balance sheet information related to operating leases is as follows:
June 30,
2024		December 31,
2023
Weighted average remaining lease term4.2 years4.5 years
Weighted average discount rate5.33 %5.16 %
Aggregate Minimum Lease Payments
Aggregate minimum lease payments under the operating lease agreements for the remainder of 2024 and in future years are as follows (in thousands):
Year Ending December 31,Amount
2024$14,404 
202524,520 
202617,750 
202713,590 
20285,957 
Thereafter9,055 
Total85,276 
Less: Present value discount(9,342)
Lease liabilities$75,934