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Employee Benefits - Additional Information (Detail) - EUR (€) € in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure Of Detailed Information About Employee Benefits [Line Items] |  |  |
Long-term employee benefits | € 15,128 | € 18,464 | € 19,085
Description of decrease in actuarial assumption leading to changes in defined benefit obligation | A 100-basis-point decrease in the discount rate would result in a Euro1.20 million increase in the amount of the defined-benefit obligation as of December 31, 2021 (December 31, 2021: Euro1.80 million). |  |
Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption | € 1,200 |  |
Actuarial assumption of discount rates [member] |  |  |
Disclosure Of Detailed Information About Employee Benefits [Line Items] |  |  |
Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption |  | € 1,800 |
Percentage of reasonably possible decrease in actuarial assumption |  | 100.00% |
AUSTRIA |  |  |
Disclosure Of Detailed Information About Employee Benefits [Line Items] |  |  |
Long-term employee benefits | 10,182 | € 13,019 |
Post Employment Benefits Defined Benefits Plan [Member] |  |  |
Disclosure Of Detailed Information About Employee Benefits [Line Items] |  |  |
Long-term employee benefits | € 12,543 | € 16,016 |

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- Definition The increase (decrease) in a defined benefit obligation that would have been caused by a decrease in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2022-03-24 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_145_a&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2022-03-24 -Paragraph 140 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_140_a&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The reasonably possible percentage of the decrease in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2022-03-24 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_145_a&doctype=Standard -URIDate 2022-03-24 + Details
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