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Fair Value of Assets and Liabilities - Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Senior Unsecured Notes | Senior unsecured notes, 9.750% coupon rate, due 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon rate	9.75%
Senior Unsecured Notes | Senior unsecured notes, 4.750% coupon rate, due 2028
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon rate	4.75%
Senior Unsecured Notes | Senior Unsecured Notes due 2031
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon rate	4.375%
Senior Unsecured Notes | Senior unsecured notes, 5.625% coupon rate, due 2042
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon rate	5.625%
Senior Unsecured Notes | Senior unsecured notes, 6.250% coupon rate, due 2046
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon rate	6.25%
Senior Secured Notes | Senior secured notes, zero coupon rate, due 2026
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon rate	0.00%
Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 2,945,291	$ 2,816,849
Carrying Value | Senior Unsecured Notes | Senior unsecured notes, 9.750% coupon rate, due 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	438,913	497,454
Carrying Value | Senior Unsecured Notes | Senior unsecured notes, 4.750% coupon rate, due 2028
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	495,700	494,746
Carrying Value | Senior Unsecured Notes | Senior Unsecured Notes due 2031
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	494,487	493,845
Carrying Value | Senior Unsecured Notes | Senior unsecured notes, 5.625% coupon rate, due 2042
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	343,207	342,946
Carrying Value | Senior Unsecured Notes | Senior unsecured notes, 6.250% coupon rate, due 2046
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	243,833	243,627
Carrying Value | Senior Secured Notes | Senior secured notes, zero coupon rate, due 2026
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	801,315	731,211
Carrying Value | Secured debt and finance leases
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	127,836	13,020
Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	2,713,876	2,399,525
Estimated Fair Value | Senior Unsecured Notes | Senior unsecured notes, 9.750% coupon rate, due 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	440,541	490,750
Estimated Fair Value | Senior Unsecured Notes | Senior unsecured notes, 4.750% coupon rate, due 2028
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	452,500	384,110
Estimated Fair Value | Senior Unsecured Notes | Senior Unsecured Notes due 2031
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	411,635	375,000
Estimated Fair Value | Senior Unsecured Notes | Senior unsecured notes, 5.625% coupon rate, due 2042
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	233,940	211,400
Estimated Fair Value | Senior Unsecured Notes | Senior unsecured notes, 6.250% coupon rate, due 2046
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	176,000	154,000
Estimated Fair Value | Senior Secured Notes | Senior secured notes, zero coupon rate, due 2026
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	865,837	771,981
Estimated Fair Value | Secured debt and finance leases
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 133,423	$ 12,284

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