Fair Value of Assets and Liabilities - Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Jun. 30, 2025	May 31, 2025	Apr. 30, 2025	Dec. 31, 2024	Nov. 30, 2024	Jun. 30, 2024
Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 2,400,824				$ 2,910,904
Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	2,190,141				2,564,449
Secured Debts and Finance Leases | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	455,093				126,611
Secured Debts and Finance Leases | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 484,932				126,001
Senior unsecured notes, 9.750% coupon rate, due 2025 | Senior Unsecured Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon rate	9.75%	9.75%	9.75%	9.75%		9.75%	9.75%
Senior unsecured notes, 9.750% coupon rate, due 2025 | Senior Unsecured Notes | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 0				379,392
Senior unsecured notes, 9.750% coupon rate, due 2025 | Senior Unsecured Notes | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 0				379,970
Senior secured notes, zero coupon rate, due 2026 | Senior Secured Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon rate	0.00%
Senior secured notes, zero coupon rate, due 2026 | Senior Secured Notes | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 0				826,974
Senior secured notes, zero coupon rate, due 2026 | Senior Secured Notes | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 0				885,108
Senior unsecured notes, 4.750% coupon rate, due 2028 | Senior Unsecured Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon rate	4.75%
Senior unsecured notes, 4.750% coupon rate, due 2028 | Senior Unsecured Notes | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 497,290				496,018
Senior unsecured notes, 4.750% coupon rate, due 2028 | Senior Unsecured Notes | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 482,635				429,170
Senior secured notes, 7.250% coupon rate, due 2030 | Senior Secured Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon rate	7.25%
Senior secured notes, 7.250% coupon rate, due 2030 | Senior Secured Notes | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 365,005				0
Senior secured notes, 7.250% coupon rate, due 2030 | Senior Secured Notes | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 383,434				0
Senior unsecured notes, 4.375% coupon rate, due 2031 | Senior Unsecured Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon rate	4.375%
Senior unsecured notes, 4.375% coupon rate, due 2031 | Senior Unsecured Notes | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 495,561				494,702
Senior unsecured notes, 4.375% coupon rate, due 2031 | Senior Unsecured Notes | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 440,000				368,240
Senior unsecured notes, 5.625% coupon rate, due 2042 | Senior Unsecured Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon rate	5.625%
Senior unsecured notes, 5.625% coupon rate, due 2042 | Senior Unsecured Notes | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 343,683				343,302
Senior unsecured notes, 5.625% coupon rate, due 2042 | Senior Unsecured Notes | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 224,140				218,260
Senior unsecured notes, 6.250% coupon rate, due 2046 | Senior Unsecured Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon rate	6.25%
Senior unsecured notes, 6.250% coupon rate, due 2046 | Senior Unsecured Notes | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 244,192				243,905
Senior unsecured notes, 6.250% coupon rate, due 2046 | Senior Unsecured Notes | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value disclosure	$ 175,000				$ 157,700