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Debt - GTA Nordic Bonds (Details)							1 Months Ended					3 Months Ended	4 Months Ended	9 Months Ended
Debt - GTA Nordic Bonds (Details)	Sep. 30, 2026 USD ($)	Mar. 24, 2026 USD ($)	Jan. 31, 2026 USD ($)	Oct. 01, 2025 USD ($)	Sep. 24, 2025 USD ($) tranche	Sep. 24, 2024 USD ($)	Sep. 30, 2026 USD ($)	Jan. 31, 2026 USD ($)	Oct. 31, 2025 USD ($)	Oct. 31, 2021 USD ($)	Apr. 30, 2019 USD ($)	Mar. 31, 2026 USD ($)	Jan. 31, 2026 USD ($)	Sep. 30, 2026 USD ($)	Sep. 30, 2025 USD ($)
Debt Instrument [Line Items]
Repayments of senior notes														$ 397,184,000	$ 0
GoA Term Loan Facility \| Secured Debt
Debt Instrument [Line Items]
Number of tranches \| tranche					2
Repurchase and redemption of senior notes		$ 53,600,000
Repayments of long term debt	$ 15,100,000
Applicable margin (as a percent)					3.75%
Life coverage ratio					1.50
Net leverage ratio					3.50
GoA Term Loan Facility, Tranche One \| Secured Debt
Debt Instrument [Line Items]
Debt term					4 years
Debt, face amount					$ 150,000,000.0
Proceeds from debt, net of issuance costs				$ 147,200,000
GoA Term Loan Facility, Tranche Two \| Secured Debt
Debt Instrument [Line Items]
Debt, face amount					$ 100,000,000.0
Proceeds from debt, net of issuance costs								$ 98,500,000
7.125% Senior Notes \| Senior Notes
Debt Instrument [Line Items]
Debt, face amount											$ 650,000,000.0
Proceeds from debt, net of issuance costs											$ 640,000,000.0
Repayments of senior notes						$ 400,000,000.0		100,000,000.0	$ 150,000,000.0				$ 250,000,000.0
Interest rate (as a percent)											7.125%
11.250% Senior Secured Bonds \| Senior Secured Bond
Debt Instrument [Line Items]
Debt, face amount			$ 350,000,000.0					$ 350,000,000.0					$ 350,000,000.0
Interest rate (as a percent)			11.25%					11.25%					11.25%
Redemption price percentage (as a percent)								100.00%
Exercise put option, repurchased			90.00%
Restricted cash minimum liquidity requirement increases, non current								$ 17,500,000
Restricted cash minimum liquidity requirement								5.00%
Debt instrument, asset coverage ratio			1.25					1.25					1.25
11.250% Senior Secured Bonds \| Senior Secured Bond \| Debt Instrument, Redemption, Change Of Control
Debt Instrument [Line Items]
Redemption price percentage (as a percent)			101.00%
7.750% Senior Notes \| Senior Notes
Debt Instrument [Line Items]
Debt, face amount										$ 400,000,000.0
Proceeds from debt, net of issuance costs										$ 395,000,000.0
Repayments of senior notes						$ 50,000,000.0	$ 50,000,000.0					$ 249,800,000		$ 250,000,000.0
Interest rate (as a percent)										7.75%
Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Repurchase and redemption of senior notes								$ 100,000,000.0