Statement Of Comprehensive Income [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||
| Profit (loss) |
200,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
149,400,000
GBP
|
149,600,000
GBP
|
149,400,000
GBP
|
105,500,000
GBP
|
–
GBP
|
105,300,000
GBP
|
–
GBP
|
200,000
GBP
|
105,500,000
GBP
|
–
GBP
|
–
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||||
| Other comprehensive income |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
2,500,000
GBP
|
2,500,000
GBP
|
2,500,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
700,000
GBP
|
700,000
GBP
|
–
GBP
|
700,000
GBP
|
–
GBP
|
–
GBP
|
| Comprehensive income |
200,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
2,500,000
GBP
|
146,900,000
GBP
|
147,100,000
GBP
|
149,400,000
GBP
|
105,500,000
GBP
|
–
GBP
|
106,000,000
GBP
|
700,000
GBP
|
200,000
GBP
|
106,200,000
GBP
|
–
GBP
|
–
GBP
|