Commitments and contingencies (Tables)

9 Months Ended

Sep. 30, 2024

Commitments and contingencies

Schedule of Changes in Accrued Environmental Remediation and Related Costs

Changes in the accrued environmental remediation and related costs during the first nine months of 2024 are as follows:

	Amount
	(In thousands)
Balance at the beginning of the period	$	91,106
Additions charged to expense, net		1,428
Payments, net		(909)
Balance at the end of the period	$	91,625
Amounts recognized in the Condensed Consolidated Balance Sheet at the end of the period:
Current liability	$	2,462
Noncurrent liability		89,163
Balance at the end of the period	$	91,625