Commitments and contingencies (Tables)

9 Months Ended

Sep. 30, 2012

Changes in Accrued Environmental Remediation and Related Costs

Changes in the accrued environmental remediation and related costs during the first nine months of 2012 are as follows:

	Amount
	(In thousands)
Balance at the beginning of the period	$	41,637
Additions charged to expense, net		14,098
Payments, net		(6,278	)
Balance at the end of the period	$	49,457
Amounts recognized in the Condensed Consolidated Balance Sheet at the end of the period:
Current liability	$	6,580
Noncurrent liability		42,877
Total	$	49,457