Discontinued operations and assets held for sale - Sale of Galapagos Real Estate Belgium NV - Net cash inflow on disposal of subsidiaries (Details) - EUR (€) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Disclosure of analysis of single amount of off-balance sheet arrangements [line items] | ||
| Cash in from disposals of subsidiaries, net of cash disposed of | € 19,431,000 | € (8,949,000) |
| Galapagos Real Estate Belgium NV [member] | ||
| Disclosure of analysis of single amount of off-balance sheet arrangements [line items] | ||
| Upfront Payment Received | 12,206,000 | |
| Less: Cash and cash equivalents balances disposed of | (13,000) | |
| Cash in from disposals of subsidiaries, net of cash disposed of | € 12,193,000 | |