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Other Commitments and Contingencies Other Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2022
Long-term Purchase Commitment [Line Items]  
Long-term Purchase Commitment [Table Text Block]
The total purchase obligations for natural gas, electric and propane supplies are as follows:
Year20232024-20252026-2027Beyond 2027Total
(in thousands)
Purchase Obligations$83,521 $82,815 $71,327 $144,768 $382,431