Analysis Of Income And Expense [Abstract]

Alfen N.V. - Filing #1842354

Concept	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Analysis of income and expense [abstract]
Revenue [abstract]
Revenue	249,679,000 EUR	—	—	189,010,000 EUR
Material income and expense [abstract]
Income from continuing operations attributable to owners of parent	249,679,000 EUR	—	—	189,010,000 EUR
Finance income (cost)	992,000 EUR	—	—	773,000 EUR
Miscellaneous other operating expense	13,594,000 EUR	—	—	11,085,000 EUR
Operating expense	221,989,000 EUR	—	—	171,659,000 EUR
Expenses by nature [abstract]
Raw materials and consumables used	148,594,000 EUR	—	—	111,066,000 EUR
Classes of employee benefits expense [abstract]
Employee benefits expense	40,051,000 EUR	—	—	34,401,000 EUR
Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract]
Depreciation and amortisation expense [abstract]
Amortisation expense	3,408,000 EUR	—	—	2,614,000 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	21,450,000 EUR	21,450,000 EUR	11,987,000 EUR	11,987,000 EUR
Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract]
Comprehensive income, attributable to owners of parent	21,450,000 EUR	—	—	11,987,000 EUR