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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Commitments Contractual Obligation Maturities
Our future commitments as of December 31, 2023 were as follows:
(in thousands)Construction Program
and Other Commitments
Capacity and Energy
Requirements
Coal Purchase
Commitments
Land
 Easement
Payments
2024$4,374 $245 $24,691 $1,804 
20254,051 217 24,593 1,840 
20261,377 197 25,374 1,845 
2027594 197 25,786 1,882 
2028550 197 25,344 1,921 
Beyond 20286,165 3,939 359,610 53,107 
Total$17,111 $4,992 $485,398 $62,399