Statement Of Comprehensive Income [Abstract]
| Concept |
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 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||
| Profit (loss) |
19,405,000
EUR
|
— |
24,281,000
EUR
|
— |
4,875,000
EUR
|
19,405,000
EUR
|
— | — | — | — |
170,957,000
EUR
|
170,957,000
EUR
|
175,092,000
EUR
|
4,135,000
EUR
|
| Other comprehensive income [abstract] | ||||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract] | ||||||||||||||
| Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans | — | — |
35,708,000
EUR
|
— | — | — | — | — | — | — | — | — |
66,648,000
EUR
|
— |
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||||
| Available-for-sale financial assets [abstract] | ||||||||||||||
| Gains (losses) on remeasuring available-for-sale financial assets, before tax | — | — |
632,111,000
EUR
|
— | — | — | — | — | — | — | — | — |
1,003,627,000
EUR
|
— |
| Reclassification adjustments on available-for-sale financial assets, before tax | — | — |
68,659,000
EUR
|
— | — | — | — | — | — | — | — | — |
46,216,000
EUR
|
— |
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] | ||||||||||||||
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income | — | — |
8,913,000
EUR
|
— | — | — | — | — | — | — | — | — |
16,651,000
EUR
|
— |
| Other comprehensive income |
15,192,000
EUR
|
200,033,000
EUR
|
111,292,000
EUR
|
42,596,000
EUR
|
4,107,000
EUR
|
115,399,000
EUR
|
26,847,000
EUR
|
49,967,000
EUR
|
9,436,000
EUR
|
401,255,000
EUR
|
362,733,000
EUR
|
2,009,000
EUR
|
368,618,000
EUR
|
5,885,000
EUR
|
| Comprehensive income |
4,214,000
EUR
|
200,033,000
EUR
|
135,573,000
EUR
|
42,596,000
EUR
|
768,000
EUR
|
134,805,000
EUR
|
26,847,000
EUR
|
49,967,000
EUR
|
9,436,000
EUR
|
401,255,000
EUR
|
533,690,000
EUR
|
172,966,000
EUR
|
543,710,000
EUR
|
10,020,000
EUR
|
| Comprehensive income attributable to [abstract] | ||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — |
134,805,000
EUR
|
— | — | — | — | — | — | — | — | — |
533,690,000
EUR
|
— |
| Comprehensive income, attributable to non-controlling interests | — | — |
768,000
EUR
|
— | — | — | — | — | — | — | — | — |
10,020,000
EUR
|
— |