Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-01-01 |
As at 2022-01-01 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||||||
| Property, plant and equipment [abstract] | ||||||||
| Property, plant and equipment |
106,828,809
EUR
|
68,609,478
EUR
|
109,865,836
EUR
|
69,115,897
EUR
|
110,131,044
EUR
|
66,759,300
EUR
|
— | — |
| Intangible assets and goodwill [abstract] | ||||||||
| Intangible assets and goodwill |
54,656,306
EUR
|
30,879,149
EUR
|
53,720,259
EUR
|
30,917,910
EUR
|
54,248,284
EUR
|
31,976,178
EUR
|
— | — |
| Investment property [abstract] | ||||||||
| Investment property |
67,953,773
EUR
|
43,427,181
EUR
|
68,325,487
EUR
|
43,377,173
EUR
|
75,059,591
EUR
|
43,840,055
EUR
|
— | — |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | ||||||||
| Investments in subsidiaries reported in separate financial statements |
0
EUR
|
219,360,367
EUR
|
0
EUR
|
185,360,343
EUR
|
0
EUR
|
131,924,683
EUR
|
— | — |
| Investments accounted for using equity method [abstract] | ||||||||
| Investments accounted for using equity method |
37,708,062
EUR
|
37,218,841
EUR
|
37,810,184
EUR
|
37,369,536
EUR
|
36,031,347
EUR
|
35,591,377
EUR
|
— | — |
| Trade and other receivables [abstract] | ||||||||
| Other receivables |
37,644,003
EUR
|
20,047,025
EUR
|
50,478,337
EUR
|
35,155,610
EUR
|
28,118,577
EUR
|
11,888,779
EUR
|
— | — |
| Categories of financial assets [abstract] | ||||||||
| Financial assets at fair value through profit or loss [abstract] | ||||||||
| Financial assets at fair value through profit or loss |
740,314,111
EUR
|
651,428,496
EUR
|
682,024,472
EUR
|
587,499,515
EUR
|
735,138,240
EUR
|
637,133,037
EUR
|
— | — |
| Financial assets at fair value through other comprehensive income [abstract] | ||||||||
| Financial assets at fair value through other comprehensive income |
1,672,966,932
EUR
|
1,094,172,694
EUR
|
1,634,153,515
EUR
|
1,143,332,953
EUR
|
1,959,630,084
EUR
|
1,458,144,468
EUR
|
— | — |
| Financial assets at amortised cost |
229,559,727
EUR
|
142,843,306
EUR
|
241,005,029
EUR
|
151,767,345
EUR
|
222,389,210
EUR
|
165,556,736
EUR
|
— | — |
| Financial assets |
2,642,840,770
EUR
|
1,888,444,496
EUR
|
2,557,183,016
EUR
|
1,882,599,813
EUR
|
2,917,157,534
EUR
|
2,260,834,241
EUR
|
— | — |
| Cash and cash equivalents [abstract] | ||||||||
| Cash and cash equivalents |
84,420,667
EUR
|
31,679,444
EUR
|
76,066,279
EUR
|
19,296,850
EUR
|
63,028,569
EUR
|
9,458,656
EUR
|
63,028,569
EUR
|
9,458,656
EUR
|
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] | ||||||||
| Non-current assets or disposal groups classified as held for sale |
3,129,709
EUR
|
0
EUR
|
2,184,821
EUR
|
0
EUR
|
3,814,449
EUR
|
0
EUR
|
— | — |
| Miscellaneous assets [abstract] | ||||||||
| Other assets |
8,331,901
EUR
|
2,743,084
EUR
|
4,960,929
EUR
|
2,467,272
EUR
|
3,371,922
EUR
|
1,609,930
EUR
|
— | — |
| Miscellaneous liabilities [abstract] | ||||||||
| Subordinated liabilities [abstract] | ||||||||
| Subordinated liabilities |
49,994,402
EUR
|
49,994,402
EUR
|
49,941,796
EUR
|
49,941,795
EUR
|
49,891,466
EUR
|
49,891,466
EUR
|
— | — |
| Investment contracts liabilities |
674,115,145
EUR
|
259,624,041
EUR
|
613,818,646
EUR
|
234,968,514
EUR
|
643,548,868
EUR
|
249,789,207
EUR
|
— | — |
| Other liabilities |
101,597,339
EUR
|
61,993,417
EUR
|
93,188,231
EUR
|
63,641,834
EUR
|
78,459,195
EUR
|
54,544,146
EUR
|
— | — |
| Issued capital [abstract] | ||||||||
| Issued capital |
73,701,392
EUR
|
73,701,392
EUR
|
73,701,392
EUR
|
73,701,392
EUR
|
73,701,392
EUR
|
73,701,392
EUR
|
— | — |
| Retained earnings [abstract] | ||||||||
| Retained earnings, profit (loss) for reporting period |
7,192,538
EUR
|
19,662,426
EUR
|
67,037,486
EUR
|
51,274,590
EUR
|
75,439,847
EUR
|
36,715,549
EUR
|
— | — |
| Retained earnings, excluding profit (loss) for reporting period |
306,091,948
EUR
|
68,191,612
EUR
|
418,315,033
EUR
|
164,656,172
EUR
|
404,479,317
EUR
|
190,605,740
EUR
|
— | — |
| Accumulated other comprehensive income [abstract] | ||||||||
| Reserve of exchange differences on translation |
3,194,650
EUR
|
0
EUR
|
3,174,588
EUR
|
0
EUR
|
3,109,186
EUR
|
0
EUR
|
— | — |
| Accumulated other comprehensive income |
37,415,983
EUR
|
29,509,839
EUR
|
60,591,408
EUR
|
46,309,356
EUR
|
12,397,963
EUR
|
11,657,953
EUR
|
— | — |
| Miscellaneous equity [abstract] | ||||||||
| Capital redemption reserve |
364,680
EUR
|
0
EUR
|
364,680
EUR
|
0
EUR
|
364,680
EUR
|
0
EUR
|
— | — |
| Capital reserve |
50,322,579
EUR
|
53,412,884
EUR
|
50,304,673
EUR
|
53,412,884
EUR
|
50,283,747
EUR
|
53,412,884
EUR
|
— | — |
| Net assets (liabilities) [abstract] | ||||||||
| Assets |
4,099,028,699
EUR
|
2,945,426,056
EUR
|
3,802,347,752
EUR
|
2,730,774,810
EUR
|
4,125,426,785
EUR
|
3,000,522,158
EUR
|
— | — |
| Assets less current liabilities [abstract] |