Statement Of Comprehensive Income [Abstract]

Alten - Filing #5981757

Concept	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31
Statement of comprehensive income [abstract]
Profit (loss)	—	186 419 EUR	—	—	—	—	—	—	—	233 205 EUR	—	—	—	—	—	—
Other comprehensive income [abstract]
Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]
Other comprehensive income, net of tax, gains (losses) from investments in equity instruments	—	3 600 EUR	—	—	—	—	—	—	—	3 700 EUR	—	—	—	—	—	—
Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans	—	133,000 EUR	—	—	—	—	—	—	—	1 040 EUR	—	—	—	—	—	—
Other comprehensive income that will not be reclassified to profit or loss, net of tax	—	3 733 EUR	—	—	—	—	—	—	—	2 660 EUR	—	—	—	—	—	—
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]
Exchange differences on translation [abstract]
Other comprehensive income, net of tax, exchange differences on translation of foreign operations	—	23 195 EUR	—	—	—	—	—	—	—	14 736 EUR	—	—	—	—	—	—
Other comprehensive income that will be reclassified to profit or loss, net of tax	—	23 195 EUR	—	—	—	—	—	—	—	14 736 EUR	—	—	—	—	—	—
Comprehensive income	0 EUR	205 882 EUR	186 419 EUR	3 733 EUR	(0) EUR	0 EUR	23 195 EUR	205 882 EUR	14 736 EUR	221 129 EUR	233 205 EUR	2 660 EUR	0 EUR	0 EUR	(0) EUR	221 129 EUR
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	205 882 EUR	—	—	—	—	—	—	—	221 129 EUR	—	—	—	—	—	—
Comprehensive income, attributable to non-controlling interests	—	0 EUR	—	—	—	—	—	—	—	0 EUR	—	—	—	—	—	—