Cash flow information (Tables)

3 Months Ended

Mar. 31, 2014

Supplemental Cash Flow Information [Abstract]

Supplemental cash flow information

Cash expenditures for interest and income taxes were as follows:

	Three Months Ended
	March 31,
	2014		2013
	(In thousands)
Interest, net of amount capitalized	$	20,850	$	21,857
Income taxes paid (refunded), net	$	9,435	$	(7,246	)

Noncash investing transactions were as follows:

	March 31,
	2014		2013
	(In thousands)
Property, plant and equipment additions in accounts payable	$	65,736	$	92,236