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Non-cash operating items (Tables)
12 Months Ended
Dec. 31, 2022
Disclosure Changes In Non Cash Operating Items [Abstract]  
Schedule of Changes in Non-Cash Operating Items
The changes in non-cash operating items consist of the following:
20222021
Accounts receivable$(124,631)$(56,751)
Fuel and natural gas in storage(21,140)(43,642)
Supplies and consumables inventory(24,088)445 
Income taxes recoverable549 (3,025)
Prepaid expenses(4,269)(1,189)
Accounts payable24,395 (33,399)
Accrued liabilities127,076 31,845 
Current income tax liability(2,741)4,363 
Asset retirements and environmental obligations(22,342)(1,185)
Net regulatory assets and liabilities(174,427)(419,484)
$(221,618)$(522,022)