Cash flow information (Tables)

6 Months Ended

Jun. 30, 2014

Supplemental Cash Flow Information [Abstract]

Supplemental cash flow information

Cash expenditures for interest and income taxes were as follows:

	Six Months Ended
	June 30,
	2014		2013
	(In thousands)
Interest, net of amount capitalized	$	39,441	$	41,440
Income taxes paid (refunded), net	$	39,984	$	(2,649	)

Noncash investing transactions were as follows:

	June 30,
	2014		2013
	(In thousands)
Property, plant and equipment additions in accounts payable	$	95,833	$	77,073