The present value, without deducting any plan assets, of expected future payments required to settle the obligation resulting from employee service in the current and prior periods. [Refer: Plan assets, at fair value]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
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-IssueDate 2025-01-01
-Paragraph 57
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-URIDate 2025-03-27

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Provisions for retirement benefit obligations - Sensitivity analysis (Details) - EUR (€) € in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Provisions for retirement benefit obligations
Benefit obligation at December 31	€ 755	€ 1,762	€ 1,559
Discount rate
Provisions for retirement benefit obligations
Percentage of reasonably possible increase or decrease in actuarial assumption	0.25%
Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption (as a percent)	2.20%	2.10%	2.20%
Discount rate at 3.70%
Provisions for retirement benefit obligations
Benefit Obligation Percentage	3.70%
Benefit obligation at December 31	€ 772
Discount rate at 3.95%
Provisions for retirement benefit obligations
Benefit Obligation Percentage	3.95%
Benefit obligation at December 31	€ 755
Discount rate at 4.20%
Provisions for retirement benefit obligations
Benefit Obligation Percentage	4.20%
Benefit obligation at December 31	€ 739
Discount rate at 3.15%
Provisions for retirement benefit obligations
Benefit Obligation Percentage		3.15%
Benefit obligation at December 31		€ 1,799
Discount rate at 3.40%
Provisions for retirement benefit obligations
Benefit Obligation Percentage		3.40%
Benefit obligation at December 31		€ 1,762
Discount rate at 3.65%
Provisions for retirement benefit obligations
Benefit Obligation Percentage		3.65%
Benefit obligation at December 31		€ 1,726
Discount rate at 2.95%
Provisions for retirement benefit obligations
Benefit Obligation Percentage			2.95%
Benefit obligation at December 31			€ 1,595
Discount rate at 3.20%
Provisions for retirement benefit obligations
Benefit Obligation Percentage			3.20%
Benefit obligation at December 31			€ 1,559
Discount rate at 3.45%
Provisions for retirement benefit obligations
Benefit Obligation Percentage			3.45%
Benefit obligation at December 31			€ 1,525