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Held-for-sale disposal group and discontinued operations - Narrative (Details) € in Thousands, $ in Thousands |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jul. 29, 2025 USD ($) tranche | Jul. 29, 2025 EUR (€) | Sep. 30, 2025 USD ($) | Sep. 30, 2025 EUR (€) | Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Jul. 29, 2025 EUR (€) tranche | Jul. 14, 2025 USD ($) | Jul. 14, 2025 EUR (€)
Subsequent Event | Loans Payable |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |
Face amount of loan |  |  |  |  |  |  |  |  |  | $ 5,831 | € 5,000
Discontinued Operations, Held-for-Sale | Light-Duty |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |
Loss from classifying the discontinued operations as held-for-sale |  |  |  |  | $ 30,183 | $ 0 | $ 30,183 | $ 0 |  |  |
Additions to long-lived assets |  |  |  |  | $ 1,620 | $ 4,176 | $ 3,926 | $ 8,325 |  |  |
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] |  |  |  |  |  |  |  |  |  |  |
Net proceeds from sale | $ 62,513 |  |  |  |  |  |  |  | € 53,600 |  |
Cash proceeds from sale | 41,170 | € 35,300 |  |  |  |  |  |  |  |  |
Consideration held in escrow | 12,829 |  |  |  |  |  |  |  | € 11,000 |  |
Maximum potential earnouts | $ 3,790 | € 3,250 |  |  |  |  |  |  |  |  |
Number of tranches for consideration held in escrow | tranche | 4 |  |  |  |  |  |  |  | 4 |  |
Discontinued Operations, Disposed of by Sale | Light-Duty | Subsequent Event | Forecast |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |
Cash proceeds from sale |  |  | $ 8,514 | € 7,300 |  |  |  |  |  |  |

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