Debt (Tables)

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Schedule of Long-Term Debt Instruments

The table below summarizes the Company's outstanding debt.

	March 31, 2024				December 31, 2023
	Principal Value		Carrying Value (a)		Principal Value		Carrying Value (a)
	(Thousands)
Term Loan Facility due June 30, 2026 (b)	$	500,000	$	497,390	$	1,250,000	$	1,244,265
Senior notes:
6.125% notes due February 1, 2025 (b)	601,521		600,650		601,521		600,389
1.75% convertible notes due May 1, 2026 (c)	—		—		290,177		286,185
3.125% notes due May 15, 2026	392,915		390,282		392,915		389,978
7.75% debentures due July 15, 2026	115,000		113,840		115,000		113,716
3.90% notes due October 1, 2027	1,169,503		1,165,710		1,169,503		1,165,439
5.700% notes due April 1, 2028	500,000		490,942		500,000		490,376
5.00% notes due January 15, 2029	318,494		315,287		318,494		315,121
7.000% notes due February 1, 2030 (b)	674,800		671,175		674,800		671,020
3.625% notes due May 15, 2031	435,165		430,310		435,165		430,141
5.750% notes due February 1, 2034	750,000		742,201		—		—
Note payable to EQM	86,954		86,954		88,483		88,483
Total debt	5,544,352		5,504,741		5,836,058		5,795,113
Less: Current portion of debt (d)	607,838		606,967		296,424		292,432
Long-term debt	$	4,936,514	$	4,897,774	$	5,539,634	$	5,502,681

(a)For the Company's note payable to EQM, the principal value represents the carrying value. For all other debt, the principal value less the unamortized debt issuance costs and debt discounts represents the carrying value.

(b)Interest rates for the Term Loan Facility, the Company's 6.125% senior notes and the Company's 7.000% senior notes fluctuate based on changes to the credit ratings assigned to the Company's senior notes by Moody's, S&P and Fitch. Interest rates for the Company's other outstanding debt do not fluctuate.

(c)As of December 31, 2023, the fair value of the Company's 1.75% convertible notes was $768.6 million and was a Level 2 fair value measurement. See Note 4.

(d)As of March 31, 2024, the current portion of debt included the Company's 6.125% senior notes and a portion of the note payable to EQM. As of December 31, 2023, the current portion of debt included the Company's 1.75% convertible notes and a portion of the note payable to EQM.