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Cash flow information (Tables)

9 Months Ended

Sep. 30, 2013

Supplemental Cash Flow Information [Abstract]

Supplemental cash flow information

Cash expenditures for interest and income taxes were as follows:

	Nine Months Ended
	September 30,
	2013			2012
	(In thousands)
Interest, net of amount capitalized	$	60,281		$	57,956
Income taxes paid	$	30,262		$	3,210

Noncash investing transactions were as follows:

	September 30,
	2013			2012
	(In thousands)
Property, plant and equipment additions in accounts payable	$	85,646		$	68,636

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