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Financial Instruments - Fair Values and Risk Management - Summary of Information about Credit Risk Exposure on Trade Receivables Using a Provision Matrix (Detail) - EUR (€) € in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Disclosure of credit risk exposure [line items] |  |
Total gross carrying amount | € 39,056 | € 41,259
Gross carrying amount [member] |  |
Disclosure of credit risk exposure [line items] |  |
Total gross carrying amount | 44,660 | 46,584
Credit risk [member] | Gross carrying amount [member] |  |
Disclosure of credit risk exposure [line items] |  |
Trade receivables subject to collective valuation | 2,514 | 16,055
Trade receivables subject to specific valuation | 42,146 | 30,529
Total gross carrying amount | 44,660 | 46,584
Expected credit loss | 43 | 101
Less than Thirty days [member] |  |
Disclosure of credit risk exposure [line items] |  |
Total gross carrying amount | 7,158 | 7,854
Less than Thirty days [member] | Credit risk [member] | Gross carrying amount [member] |  |
Disclosure of credit risk exposure [line items] |  |
Trade receivables subject to collective valuation | € 2,332 | € 15,783
Default rate | 0.53% | 0.54%
Expected credit loss | € 12 | € 85
Thirty to sixty days [member] |  |
Disclosure of credit risk exposure [line items] |  |
Total gross carrying amount | 1,355 | 1,030
Thirty to sixty days [member] | Credit risk [member] | Gross carrying amount [member] |  |
Disclosure of credit risk exposure [line items] |  |
Trade receivables subject to collective valuation | € 68 | € 266
Default rate | 5.46% | 5.55%
Expected credit loss | € 4 | € 15
Sixty One Days To Ninety Days [member] |  |
Disclosure of credit risk exposure [line items] |  |
Total gross carrying amount | 563 | 355
Sixty One Days To Ninety Days [member] | Credit risk [member] | Gross carrying amount [member] |  |
Disclosure of credit risk exposure [line items] |  |
Trade receivables subject to collective valuation | € 84 | € 6
Default rate | 17.08% | 12.71%
Expected credit loss | € 14 | € 1
Past Due Greater Than Ninety Days [member] | Credit risk [member] | Gross carrying amount [member] |  |
Disclosure of credit risk exposure [line items] |  |
Trade receivables subject to collective valuation | € 30 |
Default rate | 43.47% | 28.86%
Expected credit loss | € 13 |

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- Details
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- Details
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