Leases - Supplemental consolidated balance sheet information related to leases (Details) - USD ($) $ in Millions	5 Months Ended	7 Months Ended	12 Months Ended
Dec. 31, 2025	Jul. 31, 2025	Dec. 31, 2024
Leases [Abstract]
Weighted-average remaining lease term - Operating leases	3 years 4 months 24 days		3 years 7 months 6 days
Weighted-average remaining lease term - Finance leases	3 years 3 months 18 days		2 years 4 months 24 days
Weighted-average discount rate - Operating leases	16.90%		16.80%
Weighted-average discount rate - Finance leases	20.20%		18.40%
Maximum interest on financing lease liabilities	$ 1.0	$ 1.3	$ 1.8
Amortization expense on finance lease ROU assets	$ 3.1	$ 2.5	$ 4.7

Amount of interest expense on finance lease liability.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-4

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

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- Definition

Weighted average discount rate for finance lease calculated at point in time.

+ References

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- Definition

Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- References

No definition available.

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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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