Statement Of Cash Flows [Abstract]
| Concept |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
As at 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
As at 2022-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||||||||||||||||
| Cash flows from (used in) operating activities [abstract] | ||||||||||||||||||||
| Profit (loss) |
28,872,000
GBP
|
375,674,000
GBP
|
334,022,000
GBP
|
— |
–
GBP
|
12,780,000
GBP
|
–
GBP
|
334,022,000
GBP
|
–
GBP
|
346,802,000
GBP
|
312,373,000
GBP
|
13,629,000
GBP
|
–
GBP
|
312,373,000
GBP
|
–
GBP
|
–
GBP
|
43,841,000
GBP
|
369,843,000
GBP
|
326,002,000
GBP
|
— |
| Cash flows from (used in) operations | — | — | — | — | — | — | — | — | — |
836,966,000
GBP
|
— | — | — | — | — | — | — | — |
598,163,000
GBP
|
— |
| Interest paid, classified as operating activities | — | — | — | — | — | — | — | — | — |
82,576,000
GBP
|
— | — | — | — | — | — | — | — |
70,103,000
GBP
|
— |
| Income taxes paid (refund), classified as operating activities | — | — | — | — | — | — | — | — | — |
97,485,000
GBP
|
— | — | — | — | — | — | — | — |
76,292,000
GBP
|
— |
| Cash flows from (used in) operating activities | — | — | — | — | — | — | — | — | — |
656,905,000
GBP
|
— | — | — | — | — | — | — | — |
451,768,000
GBP
|
— |
| Cash flows from (used in) investing activities [abstract] | ||||||||||||||||||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — | — | — | — | — | — | — | — |
318,486,000
GBP
|
— | — | — | — | — | — | — | — |
668,123,000
GBP
|
— |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — | — | — | — | — | — | — | — | — |
22,643,000
GBP
|
— | — | — | — | — | — | — | — |
23,524,000
GBP
|
— |
| Purchase of property, plant and equipment, classified as investing activities | — | — | — | — | — | — | — | — | — |
229,440,000
GBP
|
— | — | — | — | — | — | — | — |
194,353,000
GBP
|
— |
| Proceeds from government grants, classified as investing activities | — | — | — | — | — | — | — | — | — |
216,000
GBP
|
— | — | — | — | — | — | — | — |
–
GBP
|
— |
| Interest received, classified as investing activities | — | — | — | — | — | — | — | — | — |
15,535,000
GBP
|
— | — | — | — | — | — | — | — |
22,759,000
GBP
|
— |
| Cash flows from (used in) investing activities | — | — | — | — | — | — | — | — | — |
531,519,000
GBP
|
— | — | — | — | — | — | — | — |
867,427,000
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | ||||||||||||||||||||
| Proceeds from issuing shares | — | — | — | — | — | — | — | — | — |
348,000
GBP
|
— | — | — | — | — | — | — | — |
397,000
GBP
|
— |
| Proceeds from borrowings, classified as financing activities | — | — | — | — | — | — | — | — | — |
603,054,000
GBP
|
— | — | — | — | — | — | — | — |
372,426,000
GBP
|
— |
| Repayments of borrowings, classified as financing activities | — | — | — | — | — | — | — | — | — |
393,469,000
GBP
|
— | — | — | — | — | — | — | — |
149,182,000
GBP
|
— |
| Payments of lease liabilities, classified as financing activities | — | — | — | — | — | — | — | — | — |
74,219,000
GBP
|
— | — | — | — | — | — | — | — |
65,580,000
GBP
|
— |
| Cash flows from (used in) financing activities | — | — | — | — | — | — | — | — | — |
100,160,000
GBP
|
— | — | — | — | — | — | — | — |
21,489,000
GBP
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — | — | — | — | — | — | — | — |
25,226,000
GBP
|
— | — | — | — | — | — | — | — |
394,170,000
GBP
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||||||||||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — | — | — | — | — | — | — | — |
19,376,000
GBP
|
— | — | — | — | — | — | — | — |
3,878,000
GBP
|
— |
| Cash and cash equivalents | — | — | — |
1,421,749,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,394,272,000
GBP
|