Cash flow information (Tables)

9 Months Ended

Sep. 30, 2015

Supplemental Cash Flow Information [Abstract]

Supplemental cash flow information

Cash expenditures for interest and income taxes were as follows:

	Nine Months Ended
	September 30,
	2015		2014
	(In thousands)
Interest, net of amounts capitalized and AFUDC - borrowed of $7.5 million and $8.6 million in 2015 and 2014, respectively	$	70,203	$	61,610
Income taxes paid, net	$	20,652	$	58,345

Noncash investing transactions were as follows:

	September 30,
	2015		2014
	(In thousands)
Property, plant and equipment additions in accounts payable	$	15,499	$	49,260