Statement Of Changes In Equity [Abstract]

Van Lanschot Kempen N.V - Filing #5829999

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	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	2023-01-01 to 2023-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Increase (decrease) through acquisition of subsidiary, equity	—	—	—	—	—	—	—	—	—	1,678,000 EUR	35,700,000 EUR	— EUR	— EUR	— EUR	— EUR	34,022,000 EUR	35,700,000 EUR	— EUR
Increase (decrease) through transfer to statutory reserve, equity	—	—	—	—	—	—	—	—	—	84,954,000 EUR	— EUR	— EUR	— EUR	— EUR	— EUR	84,954,000 EUR	— EUR	— EUR
Increase (decrease) through appropriation of retained earnings, equity	— EUR	118,446,000 EUR	— EUR	— EUR	— EUR	— EUR	118,446,000 EUR	— EUR	— EUR	— EUR	— EUR	— EUR	77,405,000 EUR	— EUR	— EUR	— EUR	— EUR	77,405,000 EUR
Purchase of treasury shares	— EUR	— EUR	— EUR	22,664,000 EUR	22,664,000 EUR	— EUR	— EUR	22,664,000 EUR	— EUR	— EUR	9,632,000 EUR	9,632,000 EUR	— EUR	— EUR	— EUR	— EUR	9,632,000 EUR	— EUR
Sale or issue of treasury shares	— EUR	— EUR	— EUR	18,119,000 EUR	16,979,000 EUR	— EUR	1,140,000 EUR	18,119,000 EUR	— EUR	— EUR	11,400,000 EUR	10,498,000 EUR	— EUR	— EUR	— EUR	— EUR	11,400,000 EUR	902,000 EUR