Debt (Tables)

6 Months Ended

Jun. 30, 2024

Debt Disclosure [Abstract]

Schedule of Long-Term Debt Instruments

The table below summarizes the Company's outstanding debt.

	June 30, 2024				December 31, 2023
	Principal Value		Carrying Value (a)		Principal Value		Carrying Value (a)
	(Thousands)
Revolving credit facility maturing July 23, 2029	$	47,000	$	47,000	$	—	$	—
Term Loan Facility due June 30, 2026 (b)	500,000		497,680		1,250,000		1,244,265
Senior notes:
6.125% notes due February 1, 2025 (b)	—		—		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		390,585		392,915		389,978
7.75% debentures due July 15, 2026	115,000		113,964		115,000		113,716
3.90% notes due October 1, 2027	1,169,503		1,165,981		1,169,503		1,165,439
5.700% notes due April 1, 2028	500,000		491,508		500,000		490,376
5.00% notes due January 15, 2029	318,494		315,453		318,494		315,121
7.000% notes due February 1, 2030 (b)	674,800		671,331		674,800		671,020
3.625% notes due May 15, 2031	435,165		430,480		435,165		430,141
5.750% notes due February 1, 2034	750,000		742,400		—		—
Note payable to EQM	85,404		85,404		88,483		88,483
Total debt	4,988,281		4,951,786		5,836,058		5,795,113
Less: Current portion of debt (d)	6,388		6,388		296,424		292,432
Long-term debt	$	4,981,893	$	4,945,398	$	5,539,634	$	5,502,681

(a)For the Company's revolving credit facility and 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 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. Prior to the Company's redemption of all of its outstanding 6.125% senior notes, interest rates for the Company's 6.125% senior notes fluctuated 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 June 30, 2024, the current portion of debt included 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.

Schedule of Debt Redeemed or Repurchased

The Company repaid, redeemed or repurchased the following debt during the six months ended June 30, 2024.

Debt Tranche	Principal		Premiums (a)		Accrued but Unpaid Interest		Total Cost
	(Thousands)
6.125% notes due February 1, 2025	$	601,521	$	1,178	$	13,612	$	616,311
Term Loan Facility due June 30, 2026	750,000		—		—		750,000
1.75% convertible notes due May 1, 2026	583		—		—		583
Total	$	1,352,104	$	1,178	$	13,612	$	1,366,894

(a)Includes third-party costs and fees paid to dealer managers and brokers.