Receivables and allowance for expected credit losses (Tables)

9 Months Ended

Sep. 30, 2023

Credit Loss [Abstract]

Accounts Receivable, Allowance for Credit Loss

Details of the Company's expected credit losses were as follows:

	Electric		Natural gas distribution		Pipeline		Construction services		Total
	(In thousands)
At December 31, 2022	$	375	$	1,615	$	2	$	2,162	$	4,154
Current expected credit loss provision	615		2,324		—		826		3,765
Less write-offs charged against the allowance	667		1,225		—		51		1,943
Credit loss recoveries collected	145		229		—		1		375
At March 31, 2023	$	468	$	2,943	$	2	$	2,938	$	6,351
Current expected credit loss provision	182		90		—		1,825		2,097
Less write-offs charged against the allowance	316		1,454		—		103		1,873
Credit loss recoveries collected	79		161		—		58		298
At June 30, 2023	$	413	$	1,740	$	2	$	4,718	$	6,873
Current expected credit loss provision	513		1,661		—		1,733		3,907
Less write-offs charged against the allowance	572		2,758		—		27		3,357
Credit loss recoveries collected	75		233		—		—		308
At September 30, 2023	$	429	$	876	$	2	$	6,424	$	7,731

	Electric		Natural gas distribution		Pipeline		Construction services		Total
	(In thousands)
At December 31, 2021	$	269	$	1,506	$	2	$	2,533	$	4,310
Current expected credit loss provision	565		1,369		—		54		1,988
Less write-offs charged against the allowance	597		932		—		71		1,600
Credit loss recoveries collected	124		180		—		28		332
At March 31, 2022	$	361	$	2,123	$	2	$	2,544	$	5,030
Current expected credit loss provision	113		92		—		292		497
Less write-offs charged against the allowance	234		939		—		104		1,277
Credit loss recoveries collected	108		177		—		—		285
At June 30, 2022	$	348	$	1,453	$	2	$	2,732	$	4,535
Current expected credit loss provision	300		881		—		(111)		1,070
Less write-offs charged against the allowance	399		1,822		—		152		2,373
Credit loss recoveries collected	85		169		—		40		294
At September 30, 2022	$	334	$	681	$	2	$	2,509	$	3,526