Statement Of Financial Position [Abstract]

WithSecure Oyj - Filing #3037678

Concept	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31
Statement of financial position [abstract]
Assets [abstract]
Property, plant and equipment	—	—	23 999 EUR	—	—	—	—	—	—	13 032 EUR	—	—	—	—	—	—	—	—
Goodwill	—	—	35 848 EUR	—	—	—	—	—	—	78 058 EUR	—	—	—	—	—	—	—	—
Intangible assets other than goodwill	—	—	16 766 EUR	—	—	—	—	—	—	20 552 EUR	—	—	—	—	—	—	—	—
Deferred tax assets	—	—	12 115 EUR	—	—	—	—	—	—	10 682 EUR	—	—	—	—	—	—	—	—
Cash and cash equivalents	—	—	27 275 EUR	—	—	—	—	—	—	36 604 EUR	—	—	55 129 EUR	—	—	—	—	—
Assets	—	—	184 814 EUR	—	—	—	—	—	—	207 412 EUR	—	—	—	—	—	—	—	—
Equity and liabilities [abstract]
Equity [abstract]
Issued capital	—	—	80,000 EUR	—	—	—	—	—	—	80,000 EUR	—	—	—	—	—	—	—	—
Retained earnings	—	—	15 575 EUR	—	—	—	—	—	—	20 222 EUR	—	—	—	—	—	—	—	—
Treasury shares	—	—	155,000 EUR	—	—	—	—	—	—	155,000 EUR	—	—	—	—	—	—	—	—
Equity attributable to owners of parent	—	—	69 233 EUR	—	—	—	—	—	—	102 980 EUR	—	—	—	—	—	—	—	—
Equity	15 575 EUR	83 638 EUR	69 233 EUR	80,000 EUR	1 244 EUR	155,000 EUR	80,000 EUR	805,000 EUR	20 222 EUR	102 980 EUR	83 638 EUR	155,000 EUR	140 089 EUR	58 649 EUR	80,000 EUR	2 124 EUR	155,000 EUR	83 638 EUR
Liabilities [abstract]
Provisions [abstract]
Provisions	—	—	3 721 EUR	—	—	—	—	—	—	3 515 EUR	—	—	—	—	—	—	—	—
Deferred tax liabilities	—	—	1 279 EUR	—	—	—	—	—	—	1 273 EUR	—	—	—	—	—	—	—	—
Liabilities included in disposal groups classified as held for sale	—	—	10 423 EUR	—	—	—	—	—	—	0 EUR	—	—	—	—	—	—	—	—
Equity and liabilities	—	—	184 814 EUR	—	—	—	—	—	—	207 412 EUR	—	—	—	—	—	—	—	—