Significant Accounting Policies - Schedule of Expected Credit Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Current expected credit loss provision	$ 6,558	$ 7,422	$ 5,409
Trade Accounts Receivable
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts receivable, allowance for credit loss, beginning balance	1,603	1,992
Current expected credit loss provision	6,558	7,422
Less write-offs charged against the allowance	7,927	9,351
Credit loss recoveries collected	1,605	1,540
Accounts receivable, allowance for credit loss, ending balance	1,839	1,603	1,992
Trade Accounts Receivable | Electric
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts receivable, allowance for credit loss, beginning balance	414	375
Current expected credit loss provision	1,891	1,645
Less write-offs charged against the allowance	2,218	1,994
Credit loss recoveries collected	386	388
Accounts receivable, allowance for credit loss, ending balance	473	414	375
Trade Accounts Receivable | Natural gas distribution
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts receivable, allowance for credit loss, beginning balance	1,189	1,615
Current expected credit loss provision	4,667	5,777
Less write-offs charged against the allowance	5,709	7,355
Credit loss recoveries collected	1,219	1,152
Accounts receivable, allowance for credit loss, ending balance	1,366	1,189	1,615
Trade Accounts Receivable | Pipeline
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts receivable, allowance for credit loss, beginning balance	0	2
Current expected credit loss provision	0	0
Less write-offs charged against the allowance	0	2
Credit loss recoveries collected	0	0
Accounts receivable, allowance for credit loss, ending balance	$ 0	$ 0	$ 2