Analysis Of Income And Expense [Abstract]

Sif Holding N.V. - Filing #3093017

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	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	—	—	—	—	—	—	422,541,000 EUR	—	335,433,000 EUR	—	—	—	—	—
Material income and expense [abstract]
Selling, general and administrative expense [abstract]
Selling expense	—	—	—	—	—	—	632,000 EUR	—	1,018,000 EUR	—	—	—	—	—
General and administrative expense	—	—	—	—	—	—	8,096,000 EUR	—	4,325,000 EUR	—	—	—	—	—
Expenses by nature [abstract]
Raw materials and consumables used	—	—	—	—	—	—	160,311,000 EUR	—	130,437,000 EUR	—	—	—	—	—
Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract]
Depreciation and amortisation expense [abstract]
Depreciation and amortisation expense	—	—	—	—	—	—	21,712,000 EUR	—	20,348,000 EUR	—	—	—	—	—
Disclosure of attribution of expenses by nature to their function [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of attribution of expenses by nature to their function [abstract]
Disclosure of attribution of expenses by nature to their function [line items]
Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract]
Share of profit (loss) of joint ventures accounted for using equity method	—	—	—	—	—	—	82,000 EUR	—	61,000 EUR	—	—	—	—	—
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	297,000 EUR	11,590,000 EUR	- EUR	- EUR	11,590,000 EUR	- EUR	11,887,000 EUR	- EUR	7,573,000 EUR	302,000 EUR	7,271,000 EUR	7,271,000 EUR	- EUR	- EUR