Disclosure Of Leases [Text Block]
| Concept |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|
| Disclosure of leases [text block] | — | — | — |
| Presentation of leases for lessee [abstract] | |||
| Right-of-use assets |
2 61. 4
GBP
|
2 5 7. 3
GBP
|
31 3 . 3
GBP
|
| Lease liabilities [abstract] | |||
| Current lease liabilities |
5 6 . 5
GBP
|
58,500,000
GBP
|
5 6 .8
GBP
|
| Non-current lease liabilities |
2 6 7. 6
GBP
|
2 74 . 3
GBP
|
2 96.0
GBP
|
| Disclosure of quantitative information about leases for lessee [abstract] | |||
| Disclosure of quantitative information about right-of-use assets [text block] | — | — | — |
| Disclosure of quantitative information about right-of-use assets [abstract] | |||
| Disclosure of quantitative information about right-of-use assets [line items] | |||
| Reconciliation of changes in right-of-use assets [abstract] |