Commitments and contingencies (Tables)

6 Months Ended

Jun. 30, 2022

Commitments and contingencies

Changes in Accrued Environmental Remediation and Related Costs

	Amount
	(In thousands)
Balance at the beginning of the period	$	92,940
Additions charged to expense, net		549
Payments, net		(453)
Balance at the end of the period	$	93,036
Amounts recognized in the Condensed Consolidated
Balance Sheet at the end of the period:
Current liability	$	2,753
Noncurrent liability		90,283
Balance at the end of the period	$	93,036