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Trade Receivables - Summary of Trade Receivables by Geographic Region (Detail) - EUR (€) € in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items] |  |
Total trade receivables, net | € 33,304 | € 39,056
Gross carrying amount [member] |  |
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items] |  |
Total trade receivables, net | 37,567 | 44,660
Gross carrying amount [member] | Italian Customers [Member] |  |
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items] |  |
Total trade receivables, net | 8,349 | 10,124
Gross carrying amount [member] | Other European Customers |  |
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items] |  |
Total trade receivables, net | 6,553 | 10,761
Gross carrying amount [member] | North American customers [member] |  |
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items] |  |
Total trade receivables, net | 9,182 | 8,233
Gross carrying amount [member] | Chinese customers [member] |  |
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items] |  |
Total trade receivables, net | 4,347 | 5,589
Gross carrying amount [member] | South American customers [member] |  |
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items] |  |
Total trade receivables, net | 5,447 | 5,047
Gross carrying amount [member] | Other foreign customers [member] |  |
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items] |  |
Total trade receivables, net | 3,689 | 4,906
Provision for doubtful accounts [member] |  |
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items] |  |
Total trade receivables, net | € (4,263) | € (5,604)

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