Receivables and allowance for expected credit losses (Tables)

6 Months Ended

Jun. 30, 2026

Credit Loss [Abstract]

Schedule of Accounts Receivable, Allowance for Credit Loss

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


			Electric			Natural gas distribution			Pipeline			Total
			(In thousands)
At December 31, 2025			$	506		$	1,443		$	—		$	1,949
Current expected credit loss provision			952			1,670			—			2,622
Less write-offs charged against the allowance			1,066			1,098			—			2,164
Credit loss recoveries collected			188			272			—			460
At March 31, 2026			$	580		$	2,287		$	—		$	2,867
Current expected credit loss provision			269			219			—			488
Less write-offs charged against the allowance			368			1,013			—			1,381
Credit loss recoveries collected			88			167			—			255
At June 30, 2026			$	569		$	1,660		$	—		$	2,229


			Electric			Natural gas distribution			Pipeline			Total
			(In thousands)
At December 31, 2024			$	473		$	1,366		$	—		$	1,839
Current expected credit loss provision			939			2,213			—			3,152
Less write-offs charged against the allowance			1,036			1,269			—			2,305
Credit loss recoveries collected			166			252			—			418
At March 31, 2025			$	542		$	2,562		$	—		$	3,104
Current expected credit loss provision			178			(151)			—			27
Less write-offs charged against the allowance			333			1,002			—			1,335
Credit loss recoveries collected			74			165			—			239
At June 30, 2025			$	461		$	1,574		$	—		$	2,035