Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||||
| Property, plant and equipment [abstract] | ||||||
| Property, plant and equipment |
417.136.694
EUR
|
403.335.743
EUR
|
364.056.975
EUR
|
378.579.903
EUR
|
— | — |
| Intangible assets and goodwill [abstract] | ||||||
| Intangible assets other than goodwill [abstract] | ||||||
| Intangible assets other than goodwill |
2.058.861
EUR
|
1.881.584
EUR
|
2.053.785
EUR
|
2.286.740
EUR
|
— | — |
| Investment property [abstract] | ||||||
| Investment property |
14.844.630
EUR
|
23.721.641
EUR
|
24.283.283
EUR
|
15.087.221
EUR
|
— | — |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | ||||||
| Investments in subsidiaries reported in separate financial statements |
0
EUR
|
4.533.063
EUR
|
4.533.063
EUR
|
0
EUR
|
— | — |
| Investments in associates reported in separate financial statements |
14.168.687
EUR
|
6.737.709
EUR
|
6.737.709
EUR
|
13.800.193
EUR
|
— | — |
| Trade and other non-current receivables [abstract] | ||||||
| Trade and other non-current receivables |
31
EUR
|
41
EUR
|
41
EUR
|
41
EUR
|
— | — |
| Miscellaneous non-current assets [abstract] | ||||||
| Non-current investments other than investments accounted for using equity method |
47.423.171
EUR
|
44.223.149
EUR
|
36.808.861
EUR
|
40.175.130
EUR
|
— | — |
| Other non-current assets |
1.089.144
EUR
|
1.089.144
EUR
|
17.752.840
EUR
|
17.853.040
EUR
|
— | — |
| Trade and other current receivables [abstract] | ||||||
| Trade and other current receivables |
41.632.400
EUR
|
41.192.593
EUR
|
43.342.836
EUR
|
43.828.727
EUR
|
— | — |
| Classes of current inventories [abstract] | ||||||
| Current inventories |
1.362.769
EUR
|
1.362.769
EUR
|
1.422.498
EUR
|
1.422.498
EUR
|
— | — |
| Classes of current inventories, alternative [abstract] | ||||||
| Cash and cash equivalents [abstract] | ||||||
| Cash and cash equivalents |
61.021.421
EUR
|
37.051.470
EUR
|
65.846.592
EUR
|
73.030.320
EUR
|
79.583.293
EUR
|
73.376.306
EUR
|
| Borrowings [abstract] | ||||||
| Non-current portion of non-current borrowings |
71.209.697
EUR
|
71.209.697
EUR
|
97.730.871
EUR
|
81.730.871
EUR
|
— | — |
| Current borrowings and current portion of non-current borrowings [abstract] | ||||||
| Current borrowings |
10.521.175
EUR
|
10.521.175
EUR
|
10.521.175
EUR
|
10.521.175
EUR
|
— | — |
| Non-current portion of non-current borrowings, by type [abstract] | ||||||
| Trade and other non-current payables [abstract] | ||||||
| Trade and other non-current payables |
146
EUR
|
115
EUR
|
934
EUR
|
966
EUR
|
— | — |
| Trade and other current payables [abstract] | ||||||
| Trade and other current payables |
39.734.303
EUR
|
38.832.869
EUR
|
35.813.153
EUR
|
36.573.045
EUR
|
— | — |
| Issued capital [abstract] | ||||||
| Issued capital |
58.420.965
EUR
|
58.420.965
EUR
|
58.420.965
EUR
|
58.420.965
EUR
|
— | — |
| Retained earnings [abstract] | ||||||
| Retained earnings |
62.982.777
EUR
|
30.637.829
EUR
|
30.013.664
EUR
|
61.607.313
EUR
|
— | — |
| Accumulated other comprehensive income [abstract] | ||||||
| Revaluation surplus |
20.507.185
EUR
|
20.382.176
EUR
|
14.581.468
EUR
|
14.948.315
EUR
|
— | — |
| Net assets (liabilities) [abstract] | ||||||
| Assets |
607.399.743
EUR
|
571.650.069
EUR
|
578.115.124
EUR
|
597.410.414
EUR
|
— | — |
| Net current assets (liabilities) [abstract] | ||||||
| Current assets |
104.973.095
EUR
|
80.494.435
EUR
|
114.785.854
EUR
|
122.490.937
EUR
|
— | — |
| Current liabilities |
50.638.269
EUR
|
49.684.712
EUR
|
46.740.936
EUR
|
47.605.935
EUR
|
— | — |
| Assets less current liabilities [abstract] |