Commitments and contingencies (Tables)

3 Months Ended

Mar. 31, 2023

Commitments and contingencies

Changes in Accrued Environmental Remediation and Related Costs

	Amount
	(In thousands)
Balance at the beginning of the period	$	92,358
Additions charged to expense, net		—
Payments, net		(836)
Balance at the end of the period	$	91,522
Amounts recognized in the Condensed Consolidated
Balance Sheet at the end of the period:
Current liability	$	1,889
Noncurrent liability		89,633
Balance at the end of the period	$	91,522