Statement Of Cash Flows [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Adjustments for decrease (increase) in trade and other receivables |
12,000,000
GBP
|
4,000,000
GBP
|
| Adjustments for increase (decrease) in trade and other payables |
26,200,000
GBP
|
15,000,000
GBP
|
| Adjustments for amortisation expense |
5,400,000
GBP
|
4,500,000
GBP
|
| Adjustments for gains (losses) on fair value adjustment, investment property |
840,900,000
GBP
|
351,100,000
GBP
|
| Adjustments for gains (losses) on change in fair value of derivatives |
2,800,000
GBP
|
2,300,000
GBP
|
| Adjustments for undistributed profits of investments accounted for using equity method |
100,000
GBP
|
100,000
GBP
|
| Cash flows from (used in) investing activities [abstract] | ||
| Dividends received from joint ventures, classified as investing activities |
900,000
GBP
|
2,200,000
GBP
|
| Purchase of investment property |
316,900,000
GBP
|
279,000,000
GBP
|
| Proceeds from sales of investment property |
4,200,000
GBP
|
132,300,000
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||
| Proceeds from issue of ordinary shares |
302,800,000
GBP
|
–
GBP
|
| Proceeds from issue of bonds, notes and debentures |
–
GBP
|
246,200,000
GBP
|
| Payments for share issue costs |
5,800,000
GBP
|
–
GBP
|
| Payments for debt issue costs |
700,000
GBP
|
2,100,000
GBP
|