Statement Of Cash Flows [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||
| Cash flows from (used in) operating activities [abstract] | ||||
| Adjustments for finance income |
7,572,819
EUR
|
6,391,292
EUR
|
6,349,703
EUR
|
3,867,468
EUR
|
| Cash flows from (used in) operations before changes in working capital |
89,640,015
EUR
|
91,977,792
EUR
|
112,066,581
EUR
|
113,922,029
EUR
|
| Adjustments for decrease (increase) in trade and other receivables |
1,083,820
EUR
|
684,140
EUR
|
12,852,528
EUR
|
13,146,786
EUR
|
| Adjustments for increase (decrease) in trade and other payables |
4,641,703
EUR
|
4,798,990
EUR
|
12,636,012
EUR
|
12,880,018
EUR
|
| Adjustments for increase (decrease) in deferred income including contract liabilities [abstract] | ||||
| Adjustments for increase (decrease) in deferred income including contract liabilities |
2,680,805
EUR
|
2,552,731
EUR
|
2,399,034
EUR
|
2,269,015
EUR
|
| Adjustments for decrease (increase) in other assets |
319,067
EUR
|
319,067
EUR
|
9,433,547
EUR
|
9,433,547
EUR
|
| Adjustments for undistributed profits of investments accounted for using equity method |
0
EUR
|
1,780,357
EUR
|
0
EUR
|
1,734,285
EUR
|
| Cash flows from (used in) investing activities [abstract] | ||||
| Dividends received from investments accounted for using equity method, classified as investing activities |
2,932,828
EUR
|
2,989,366
EUR
|
2,524,888
EUR
|
2,580,434
EUR
|
| Dividends received from associates, classified as investing activities |
691,982
EUR
|
691,982
EUR
|
1,158,075
EUR
|
1,158,075
EUR
|
| Proceeds from sales of investment property |
19,587
EUR
|
31,824
EUR
|
2,886
EUR
|
2,886
EUR
|
| Purchase of property, plant and equipment, intangible assets other than goodwill, investment property and other non-current assets |
44,533,865
EUR
|
44,751,576
EUR
|
46,043,710
EUR
|
46,701,498
EUR
|
| Proceeds from disposals of property, plant and equipment, intangible assets other than goodwill, investment property and other non-current assets |
684,918
EUR
|
707,525
EUR
|
1,813,165
EUR
|
1,959,445
EUR
|
| Proceeds from sales of investments other than investments accounted for using equity method |
116,817,787
EUR
|
122,753,697
EUR
|
1,619
EUR
|
1,619
EUR
|
| Cash flows from (used in) decrease (increase) in short-term deposits and investments |
188,704,100
EUR
|
193,704,100
EUR
|
0
EUR
|
0
EUR
|
| Cash flows from (used in) financing activities [abstract] | ||||
| Proceeds from non-current borrowings |
60,000,000
EUR
|
60,000,000
EUR
|
36,100,000
EUR
|
36,100,000
EUR
|
| Repayments of non-current borrowings |
5,142,857
EUR
|
5,142,857
EUR
|
12,250,000
EUR
|
12,250,000
EUR
|
| Repayments of current borrowings |
8,336,093
EUR
|
8,336,093
EUR
|
32,408,143
EUR
|
32,408,143
EUR
|