Long-term Debt (Tables)

6 Months Ended

Jun. 30, 2013

Long-term Debt

Long-term debt includes the following:

	June 30, 2013			June 30, 2012			December 31, 2012
	(In thousands)
Medium-term notes due November 2013	$	50,000		$	100,000		$	50,000
2008 Senior Notes		—			350,000			350,000
2010 Senior Notes due October 2020 and October 2040		500,000			500,000			500,000
2011 Senior Notes due November 2016 and November 2041		600,000			600,000			600,000
2013 Senior Notes due March 2018 and March 2023		500,000			—			—
		1,650,000			1,550,000			1,500,000
Less: current portion		(50,000	)		(400,000	)		(400,000	)
Total long-term debt	$	1,600,000		$	1,150,000		$	1,100,000