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Derivative financial instruments - Schedule of derivative instruments (Details) - Sep. 30, 2025 € in Thousands, $ in Thousands | USD ($) | EUR (€)
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Interest rate swap |  |
Derivatives, Fair Value [Line Items] |  |
Notional values | $ | $ 44,832 |
Foreign currency hedges |  |
Derivatives, Fair Value [Line Items] |  |
Notional values | € |  | € 6,376

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