Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

Long-term debt includes the following:

	March 31, 2020			March 31, 2019			December 31, 2019
	(In thousands)
2010 Senior Notes due October 2020	$	—		$	250,000		$	—
2010 Senior Notes due October 2040	250,000			250,000			250,000
2011 Senior Notes due November 2041	300,000			300,000			300,000
2013 Senior Notes due March 2023	250,000			250,000			250,000
2016 Senior Notes due August 2021	—			350,000			—
2017/2018 Senior Notes due December 2025	1,500,000			1,500,000			1,500,000
2019 Senior Notes due December 2027	600,000			—			600,000
Debt issuance costs and debt discount	(51,076		)	(46,546		)	(53,249		)
	2,848,924			2,853,454			2,846,751
Less: current portion	—			—			—
	$	2,848,924		$	2,853,454		$	2,846,751