Debt - Senior Secured Notes (Details) - USD ($)						3 Months Ended		12 Months Ended
	Jan. 22, 2026	Dec. 23, 2025	Dec. 08, 2025	Dec. 05, 2025	Jun. 04, 2025	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Debt Instrument [Line Items]
Debt repaid						$ 94,290,000	$ 2,948,000
Debt issuance costs						55,000,000		$ 60,000,000
Loss on extinguishment of debt						$ 2,728,000	$ 0
Term Loan And Senior Secured Notes
Debt Instrument [Line Items]
Debt instrument, fee amount				$ 13,000,000
Accrued and unpaid interest				15,000,000
Senior Secured Notes
Debt Instrument [Line Items]
Debt repaid				$ 287,000,000
Senior Secured Notes | July 2030 Notes
Debt Instrument [Line Items]
Aggregate principal amount					$ 1,325,000,000
Interest rate					11.125%	11.125%
Senior Secured Notes | 2028 Term Loan
Debt Instrument [Line Items]
Debt repaid					$ 900,000,000
Senior Secured Notes | June 2027 Notes
Debt Instrument [Line Items]
Interest rate					8.625%	8.625%
Repurchase of principal amount		$ 92,000,000			$ 325,000,000
Loss on extinguishment of debt						$ 3,000,000
Debt exchanged			$ 240,000,000
Redemption price percentage		102.156%
Redemption deposit		$ 98,000,000
Redemption deposit principal		92,000,000
Redemption deposit call premium		2,000,000
Redemption deposit accrued interest		$ 4,000,000
Senior Secured Notes | June 2025 Refinancing
Debt Instrument [Line Items]
Debt repaid					1,225,000,000
Additional indebtedness incurred					100,000,000
Debt instrument, fee amount					44,000,000
Accrued and unpaid interest					34,000,000
Debt issuance costs					$ 27,000,000
Loss on extinguishment of debt								85,000,000
Senior Secured Notes | June 2029 Notes
Debt Instrument [Line Items]
Aggregate principal amount								$ 1,000,000,000
Interest rate				11.125%		11.125%		11.125%
Debt instrument, fee amount				$ 19,000,000
Proceeds on borrowings from lenders				1,000,000,000
Maximum required guaranteed amount				400,000,000
Senior Secured Notes | November 2029 Notes
Debt Instrument [Line Items]
Interest rate			10.75%			10.75%
Proceeds on borrowings from lenders			$ 237,000,000
Debt exchanged			379,000,000
Payments of debt restructuring costs			$ 7,000,000
Senior Secured Notes | December 2027 Notes
Debt Instrument [Line Items]
Interest rate			11.25%			11.25%
Debt repaid	$ 2,000,000
Debt exchanged			$ 44,000,000
Senior Secured Notes | March 2030 Notes
Debt Instrument [Line Items]
Aggregate principal amount			$ 470,000,000
Interest rate			10.75%			10.75%
Debt instrument, fee amount			$ 7,000,000
Accrued and unpaid interest			$ 11,000,000
Term Loan
Debt Instrument [Line Items]
Debt repaid				$ 627,000,000		$ 93,000,000