Statement Of Financial Position [Abstract]
| Concept |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — | — | — | — | — | — | — |
150,686,000
EUR
|
— | — | — |
150,565,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
201,845,000
EUR
|
— | — |
201,719,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — | — | — | — | — | — | — | — | — |
338,256,000
EUR
|
— | — | — |
338,232,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
357,053,000
EUR
|
— | — |
357,053,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — | — | — | — | — | — | — | — | — |
456,000
EUR
|
— | — | — |
279,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
496,000
EUR
|
— | — |
288,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — | — | — | — | — | — | — |
3,616,000
EUR
|
— | — | — |
3,616,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
-
EUR
|
— | — |
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — | — | — | — | — | — | — | — |
493,240,000
EUR
|
— | — | — |
497,496,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
559,999,000
EUR
|
— | — |
564,218,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Trade and other current receivables | — | — | — | — | — | — | — | — | — | — | — | — |
11,643,000
EUR
|
— | — | — |
10,636,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
10,646,000
EUR
|
— | — |
9,941,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current tax assets, current | — | — | — | — | — | — | — | — | — | — | — | — |
-
EUR
|
— | — | — |
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
349,000
EUR
|
— | — |
349,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — | — | — | — | — | — | — |
61,517,000
EUR
|
— | — | — |
57,148,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
51,076,000
EUR
|
— | — |
47,433,000
EUR
|
— | — | — | — | — | — | — | — |
41,865,000
EUR
|
— | — | — | — | — | — | — | — | — |
37,846,000
EUR
|
| Current assets | — | — | — | — | — | — | — | — | — | — | — | — |
78,841,000
EUR
|
— | — | — |
73,463,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
91,695,000
EUR
|
— | — |
87,329,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — | — | — | — | — | — | — |
572,081,000
EUR
|
— | — | — |
570,959,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
651,694,000
EUR
|
— | — |
651,547,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Issued capital | — | — | — | — | — | — | — | — | — | — | — | — |
110,315,000
EUR
|
— | — | — |
110,315,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
110,505,000
EUR
|
— | — |
110,505,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — | — | — | — | — | — | — |
64,126,000
EUR
|
— | — | — |
64,971,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
33,211,000
EUR
|
— | — |
33,272,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — | — | — | — | — | — | — | — |
4,002,000
EUR
|
— | — | — |
4,002,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
4,002,000
EUR
|
— | — |
4,002,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Treasury shares | — | — | — | — | — | — | — | — | — | — | — | — |
-
EUR
|
— | — | — |
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
267,000
EUR
|
— | — |
267,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
-
EUR
|
11,051,000
EUR
|
15,929,000
EUR
|
64,126,000
EUR
|
15,929,000
EUR
|
67,624,000
EUR
|
110,315,000
EUR
|
4,002,000
EUR
|
11,051,000
EUR
|
-
EUR
|
67,624,000
EUR
|
64,971,000
EUR
|
144,713,000
EUR
|
4,002,000
EUR
|
82,000
EUR
|
110,315,000
EUR
|
143,950,000
EUR
|
11,048,000
EUR
|
267,000
EUR
|
41,970,000
EUR
|
11,048,000
EUR
|
33,211,000
EUR
|
33,272,000
EUR
|
110,505,000
EUR
|
267,000
EUR
|
72,000
EUR
|
41,970,000
EUR
|
4,002,000
EUR
|
216,326,000
EUR
|
15,929,000
EUR
|
15,929,000
EUR
|
216,459,000
EUR
|
110,505,000
EUR
|
4,002,000
EUR
|
7,947,000
EUR
|
42,057,000
EUR
|
11,038,000
EUR
|
110,476,000
EUR
|
-
EUR
|
3,993,000
EUR
|
190,649,000
EUR
|
7,423,000
EUR
|
15,929,000
EUR
|
267,000
EUR
|
15,929,000
EUR
|
42,057,000
EUR
|
3,993,000
EUR
|
267,000
EUR
|
110,476,000
EUR
|
11,038,000
EUR
|
191,173,000
EUR
|
| Liabilities [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Non-current provisions for employee benefits | — | — | — | — | — | — | — | — | — | — | — | — |
707,000
EUR
|
— | — | — |
707,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
632,000
EUR
|
— | — |
632,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — | — | — | — | — | — | — | — |
-
EUR
|
— | — | — |
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
8,605,000
EUR
|
— | — |
8,605,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — | — | — | — | — | — | — | — |
365,952,000
EUR
|
— | — | — |
365,934,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
373,097,000
EUR
|
— | — |
373,097,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Current provisions for employee benefits | — | — | — | — | — | — | — | — | — | — | — | — |
49,000
EUR
|
— | — | — |
49,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
43,000
EUR
|
— | — |
43,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current provisions | — | — | — | — | — | — | — | — | — | — | — | — |
3,596,000
EUR
|
— | — | — |
3,596,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
1,709,000
EUR
|
— | — |
1,709,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — | — | — | — | — | — | — | — | — | — |
3,695,000
EUR
|
— | — | — |
3,513,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
7,946,000
EUR
|
— | — |
7,720,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other current non-financial liabilities | — | — | — | — | — | — | — | — | — | — | — | — |
740,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
726,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — | — | — | — | — | — | — | — |
61,416,000
EUR
|
— | — | — |
61,0 75
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
62,271,000
EUR
|
— | — |
61,991,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — | — | — | — | — | — | — |
572, 081
EUR
|
— | — | — |
570,959,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
651,694,000
EUR
|
— | — |
651,547,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |