Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2022

Commitments And Contingencies Disclosure [Abstract]

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		144
Payments, net		(180)
Balance at the end of the period	$	92,904
Amounts recognized in the Condensed Consolidated
Balance Sheet at the end of the period:
Current liability	$	2,605
Noncurrent liability		90,299
Balance at the end of the period	$	92,904