Statement Of Changes In Equity [Abstract]

Alfen N.V. - Filing #2154182

Concept	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 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	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	179,613,000 EUR	98,811,000 EUR	29,684,000 EUR	—	—	—	48,943,000 EUR	—	2,175,000 EUR	150,583,000 EUR	—	—	—	—	53,047,000 EUR	50,651,000 EUR	44,710,000 EUR	2,175,000 EUR	—	22,265,000 EUR	96,319,000 EUR	21,450,000 EUR	50,429,000 EUR	2,175,000 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	29,684,000 EUR	—	—	—	29,684,000 EUR	— EUR	— EUR	—	— EUR	—	—	— EUR	53,047,000 EUR	— EUR	53,047,000 EUR	—	—	—	—	— EUR	—	—	—	—	—
Other comprehensive income	— EUR	—	—	—	— EUR	— EUR	— EUR	—	— EUR	—	—	— EUR	— EUR	— EUR	— EUR	—	—	—	—	— EUR	—	—	—	—	—
Comprehensive income	29,684,000 EUR	—	—	—	29,684,000 EUR	— EUR	— EUR	—	— EUR	—	—	— EUR	53,047,000 EUR	— EUR	53,047,000 EUR	—	—	—	—	— EUR	—	—	—	—	—
Issue of equity	— EUR	—	—	—	— EUR	— EUR	— EUR	—	— EUR	—	—	— EUR	— EUR	— EUR	— EUR	—	—	—	—	— EUR	—	—	—	—	—
Dividends recognised as distributions to owners	— EUR	—	—	—	— EUR	— EUR	— EUR	—	— EUR	—	—	— EUR	— EUR	— EUR	— EUR	—	—	—	—	— EUR	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	1,054,000 EUR	—	—	—	— EUR	1,054,000 EUR	— EUR	—	— EUR	—	—	— EUR	995,000 EUR	995,000 EUR	— EUR	—	—	—	—	— EUR	—	—	—	—	—