Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

Long-term debt includes the following:

	September 30, 2021		September 30, 2020		December 31, 2020
	(In thousands)
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
2017/2018 Senior Notes due December 2025	—		1,500,000		1,500,000
2019 Senior Notes due December 2027	600,000		600,000		600,000
2021 Senior Notes due April 2026	600,000		—		—
2021 Senior Notes due April 2029	600,000		—		—
Debt issuance costs and debt discount	(30,165)		(47,249)		(45,336)
	$	2,569,835	$	2,852,751	$	2,854,664