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Discontinued operations - Narrative (Details) € in Thousands, $ in Thousands |  | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jul. 29, 2025 USD ($) tranche | Jul. 29, 2025 EUR (€) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Oct. 01, 2025 USD ($) | Oct. 01, 2025 EUR (€) | Sep. 30, 2025 EUR (€) | Jul. 29, 2025 EUR (€) tranche | Jul. 14, 2025 USD ($) | Jul. 14, 2025 EUR (€)
Discontinued Operations, Disposed of by Sale | Light-Duty |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net proceeds from sale | $ 59,975 |  | $ 47,146 |  | $ 47,146 |  |  |  | € 40,424 | € 51,424 |  |
Loss from classifying the discontinued operations as held-for-sale | $ |  |  | $ 5,085 | $ 0 | $ 35,268 | $ 0 |  |  |  |  |  |
Consideration held in escrow | $ 12,829 |  |  |  |  |  |  |  |  | € 11,000 |  |
Number of tranches for consideration held in escrow | tranche | 4 |  |  |  |  |  |  |  |  | 4 |  |
Maximum potential earnouts | $ 3,790 | € 3,250 |  |  |  |  |  |  |  |  |  |
Discontinued Operations, Disposed of by Sale | Light-Duty | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Consideration held in escrow |  |  |  |  |  |  | $ 3,519 | € 3,000 |  |  |  |
Loans Payable |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Face amount of loan |  |  |  |  |  |  |  |  |  |  | $ 5,839 | € 5,000

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