Analysis Of Income And Expense [Abstract]

Alfen N.V. - Filing #2154182

Concept	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	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31
Analysis of income and expense [abstract]
Revenue [abstract]
Revenue	—	504,477,000 EUR	—	—	—	—	—	439,876,000 EUR	—	—
Material income and expense [abstract]
Income from continuing operations attributable to owners of parent	—	504,477,000 EUR	—	—	—	—	—	439,876,000 EUR	—	—
Finance income (cost)	—	3,377,000 EUR	—	—	—	—	—	973,000 EUR	—	—
Miscellaneous other operating expense	—	26,489,000 EUR	—	—	—	—	—	21,296,000 EUR	—	—
Operating expense	—	462,618,000 EUR	—	—	—	—	—	372,130,000 EUR	—	—
Expenses by nature [abstract]
Raw materials and consumables used	—	324,477,000 EUR	—	—	—	—	—	262,957,000 EUR	—	—
Classes of employee benefits expense [abstract]
Employee benefits expense	—	68,511,000 EUR	—	—	—	—	—	53,749,000 EUR	—	—
Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract]
Depreciation and amortisation expense [abstract]
Amortisation expense	—	5,619,000 EUR	—	—	—	—	—	3,883,000 EUR	—	—
Disclosure of attribution of expenses by nature to their function [text block]	—	—	—	—	—	—	—	—	—	—
Disclosure of attribution of expenses by nature to their function [abstract]
Disclosure of attribution of expenses by nature to their function [line items]
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	— EUR	29,684,000 EUR	29,684,000 EUR	— EUR	— EUR	— EUR	53,047,000 EUR	53,047,000 EUR	— EUR	— EUR
Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract]
Comprehensive income, attributable to owners of parent	—	29,684,000 EUR	—	—	—	—	—	53,047,000 EUR	—	—