Analysis Of Income And Expense [Abstract]

SSH Communications Security - Filing #2196742

Concept	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	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	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Analysis of income and expense [abstract]
Revenue [abstract]
Revenue	—	—	—	—	—	—	15 929 489 EUR	—	—	—	11 251 214 EUR	—	—	—	—	—
Material income and expense [abstract]
Research and development expense	—	—	—	—	—	—	5 836 431 EUR	—	—	—	5 047 946 EUR	—	—	—	—	—
Sales and marketing expense	—	—	—	—	—	—	8 644 687 EUR	—	—	—	6 698 629 EUR	—	—	—	—	—
Miscellaneous other comprehensive income [abstract]
Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract]
Other comprehensive income, net of tax, exchange differences on translation of foreign operations	264 EUR	—	—	—	142 594 EUR	142 594 EUR	142 858 EUR	—	—	—	266 038 EUR	266 038 EUR	—	—	—	266 038 EUR
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	261 117 EUR	0 EUR	0 EUR	0 EUR	142 594 EUR	2 200 135 EUR	2 461 252 EUR	2 057 540 EUR	2 834 022 EUR	0 EUR	2 812 064 EUR	266 038 EUR	244 081 EUR	0 EUR	0 EUR	2 567 983 EUR
Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	—	2 200 135 EUR	—	—	—	2 567 983 EUR	—	—	—	—	—
Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract]
Comprehensive income, attributable to non-controlling interests	—	—	—	—	—	—	261 117 EUR	—	—	—	244 081 EUR	—	—	—	—	—