Statement Of Cash Flows [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Cash flows from (used in) operations |
83,200,000
GBP
|
— | — |
70,500,000
GBP
|
— |
| Interest paid, classified as operating activities |
35,100,000
GBP
|
— | — |
24,200,000
GBP
|
— |
| Interest received, classified as operating activities |
1,600,000
GBP
|
— | — |
1,300,000
GBP
|
— |
| Cash flows from (used in) operating activities |
45,900,000
GBP
|
— | — |
43,000,000
GBP
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Purchase of property, plant and equipment, classified as investing activities |
800,000
GBP
|
— | — |
400,000
GBP
|
— |
| Purchase of intangible assets, classified as investing activities |
300,000
GBP
|
— | — |
800,000
GBP
|
— |
| Cash receipts from repayment of advances and loans made to other parties, classified as investing activities |
–
GBP
|
— | — |
7,700,000
GBP
|
— |
| Cash flows from (used in) investing activities |
32,300,000
GBP
|
— | — |
81,300,000
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Payments to acquire or redeem entity's shares |
–
GBP
|
— | — |
25,800,000
GBP
|
— |
| Proceeds from borrowings, classified as financing activities |
129,100,000
GBP
|
— | — |
144,100,000
GBP
|
— |
| Repayments of borrowings, classified as financing activities |
152,600,000
GBP
|
— | — |
99,400,000
GBP
|
— |
| Dividends paid, classified as financing activities |
31,600,000
GBP
|
— | — |
32,400,000
GBP
|
— |
| Cash flows from (used in) financing activities |
56,200,000
GBP
|
— | — |
14,600,000
GBP
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes |
42,600,000
GBP
|
— | — |
52,900,000
GBP
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents |
700,000
GBP
|
— | — |
600,000
GBP
|
— |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes |
43,300,000
GBP
|
— | — |
53,500,000
GBP
|
— |
| Cash and cash equivalents | — |
70,600,000
GBP
|
113,900,000
GBP
|
— |
167,400,000
GBP
|