Amount of amortization expense attributable to debt issuance costs.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(8))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1F
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1F

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-3

Debt Obligations - Non-Operating Corporate 10.50% Senior Secured Notes due 2027 Narrative (Details)	1 Months Ended	3 Months Ended	9 Months Ended
	Aug. 31, 2025 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Total aggregate finance lease and debt principal payments		$ 700,400,000	$ 700,400,000	$ 668,300,000
Non-Operating Corporate
Debt Instrument [Line Items]
Total aggregate finance lease and debt principal payments		480,100,000	480,100,000	429,900,000
Secured Debt \| Non-Operating Corporate
Debt Instrument [Line Items]
Total aggregate finance lease and debt principal payments		$ 45,100,000	$ 45,100,000
10.50% Senior Secured Notes \| Secured Debt \| Non-Operating Corporate
Debt Instrument [Line Items]
Interest rate	10.50%	10.50%	10.50%
Face amount	$ 360,400,000
Debt issued, percentage of par value	100.00%
Convertible notes, conversion ratio	0.05250
Threshold percentage difference from the present value of the remaining cash flows	10.00%
Deferred financing fees		$ 1,200,000	$ 1,200,000
Amortization of debt issuance costs		8,200,000	8,200,000
Total aggregate finance lease and debt principal payments		342,600,000	342,600,000
Outstanding debt		360,400,000	360,400,000	0
Unamortized discount		$ 16,600,000	$ 16,600,000
Interest rate, effective percentage		14.40%	14.40%
Foreign subsidiary voting stock percentage threshold	65.00%
Redemption price percentage	100.00%
Debt covenant, asset sale prepayment requirement threshold percentage	101.00%
Debt covenant, mandatory prepayment, change in control, percentage	101.00%
Debt covenant, mandatory prepayment, proceeds from certain asset sales, amount threshold	$ 150,000,000
Default grace period for payment days	30 days
Default grace period for covenant breach days	60 days
Holders percentage required to declare default	30.00%
Judgment default threshold	$ 20,000,000
Judgment default grace period days	60 days
8.50% Senior Secured Notes \| Secured Debt \| Non-Operating Corporate
Debt Instrument [Line Items]
Interest rate		8.50%	8.50%		8.50%
Face amount					$ 330,000,000
Debt issued, percentage of par value					100.00%
Debt conversion, amount exchanged	$ 328,100,000
Exit fees (non-current portion)	18,300,000
Deferred financing fees	$ 1,300,000	$ 5,000	$ 5,000	2,800,000
Outstanding debt		1,900,000	1,900,000	$ 330,000,000.0
Interest rate, effective percentage					9.30%
Revolving Credit Agreement \| Line of Credit \| Non-Operating Corporate \| Revolving Credit Facility
Debt Instrument [Line Items]
Face amount		$ 20,000,000	$ 20,000,000
Interest rate, effective percentage		10.00%	10.00%	10.60%
Line of credit outstanding		$ 20,000,000	$ 20,000,000	$ 20,000,000