Statement Of Comprehensive Income [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
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 |
2021-01-01 to 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
–
GBP
|
27,838,000
GBP
|
–
GBP
|
–
GBP
|
27,838,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
93,990,000
GBP
|
93,990,000
GBP
|
| 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 revaluation of property, plant and equipment, right-of-use assets and intangible assets |
–
GBP
|
–
GBP
|
133,000
GBP
|
133,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
200,000
GBP
|
200,000
GBP
|
–
GBP
|
| Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans |
–
GBP
|
–
GBP
|
–
GBP
|
295,000
GBP
|
–
GBP
|
–
GBP
|
295,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
262,000
GBP
|
262,000
GBP
|
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||||||
| Financial assets measured at fair value through other comprehensive income [abstract] | ||||||||||||||||
| Other comprehensive income, before tax, financial assets measured at fair value through other comprehensive income |
–
GBP
|
–
GBP
|
–
GBP
|
156,000
GBP
|
–
GBP
|
–
GBP
|
156,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
670,000
GBP
|
670,000
GBP
|
| Other comprehensive income | — | — | — |
217,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
595,000
GBP
|
— |
| Comprehensive income |
–
GBP
|
–
GBP
|
25,109,000
GBP
|
28,055,000
GBP
|
–
GBP
|
–
GBP
|
53,164,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
66,796,000
GBP
|
94,585,000
GBP
|
27,789,000
GBP
|