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Revenues - Schedule of Breakdown of Revenues by Geographic Area (Details) - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Revenues | € 1,916,947 | € 1,946,647 | € 1,904,549
EMEA |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Revenues | 683,846 | 680,259 | 658,694
Italy |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Revenues | 225,094 | 255,527 | 281,793
Americas |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Revenues | 566,069 | 524,790 | 454,890
United States |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Revenues | 482,451 | 452,770 | 384,544
Greater China Region |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Revenues | 435,173 | 509,378 | 595,515
Rest of APAC |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Revenues | 228,809 | 229,877 | 192,492
Other |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Revenues | 3,050 | 2,343 | 2,958
Netherlands |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Revenues | € 12,894 | € 12,314 | € 15,505

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