Contract Liabilities - Additional Information (Detail) - EUR (€) € in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Contract Liabilities [Line Items] | |||
| Revenue recognized from contract liabilities | € 5.9 | € 1.4 | € 13.3 |
| Bottom of range [member] | |||
| Contract Liabilities [Line Items] | |||
| Expected revenue recognition period from non-current contract liabilities . | 1 year | ||
| Top of range [member] | |||
| Contract Liabilities [Line Items] | |||
| Expected revenue recognition period from non-current contract liabilities . | 2 years | ||