SEGMENT INFORMATION - Reconciliation from total segment adjusted EBITDA to income (loss) (Details) - EUR (€) € in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
SEGMENT INFORMATION
Total segment adjusted EBITDA	€ (5,527)	€ (5,258)	€ 6,267	€ (74,457)	€ 39,099
Financial result	(38,726)	(1,978)	(72,178)	(3,824)	9,594
Depreciation and amortization	(2,433)	(2,547)	(4,824)	(7,315)	(6,904)
Share of loss from equity method investees	(108)	(307)	(406)		(1,057)
Income tax benefit (expense)	(1,015)	(76)	41	1,492	(2,778)
Net income (loss) for the period	€ (47,809)	€ (10,165)	€ (71,100)	€ (84,104)	€ 37,954

The amount of depreciation and amortisation expense. Depreciation and amortisation are the systematic allocations of depreciable amounts of assets over their useful lives.

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+ Details

- Definition

The total of income less expenses from continuing and discontinued operations, excluding the components of other comprehensive income. [Refer: Other comprehensive income]

+ References

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+ Details