Statement Of Cash Flows [Abstract]
| Concept |
As at 2023-03-25 |
2022-03-27 to 2023-03-25 |
2022-03-26 to 2023-03-25 |
As at 2022-03-26 |
2021-03-28 to 2022-03-26 |
As at 2021-03-27 |
|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||
| Cash flows from (used in) operating activities [abstract] | ||||||
| Cash flows from (used in) operations | — |
24,800,000
GBP
|
— | — |
18,300,000
GBP
|
— |
| Income taxes paid (refund), classified as operating activities | — |
1. 0
GBP
|
— | — |
1,800,000
GBP
|
— |
| Cash flows from (used in) operating activities | — |
23,800,000
GBP
|
— | — |
16,500,000
GBP
|
— |
| Cash flows from (used in) investing activities [abstract] | ||||||
| Proceeds from sales of property, plant and equipment, classified as investing activities | — |
0. 4
GBP
|
— | — |
1 .9
GBP
|
— |
| Purchase of intangible assets, classified as investing activities | — |
10,400,000
GBP
|
— | — |
8 . 8
GBP
|
— |
| Interest received, classified as investing activities | — |
0. 2
GBP
|
— | — |
–
GBP
|
— |
| Cash flows from (used in) investing activities | — |
20 .8
GBP
|
— | — |
25,800,000
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | ||||||
| Proceeds from borrowings, classified as financing activities | — |
2 7.0
GBP
|
— | — |
1 7. 0
GBP
|
— |
| Payments of lease liabilities, classified as financing activities | — |
2,400,000
GBP
|
— | — |
2,200,000
GBP
|
— |
| Interest paid, classified as financing activities | — |
10 .3
GBP
|
— | — |
6 .2
GBP
|
— |
| Cash flows from (used in) financing activities | — |
12,600,000
GBP
|
— | — |
7. 7
GBP
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
15,600,000
GBP
|
— | — |
1,600,000
GBP
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — |
0. 4
GBP
|
— |
0. 2
GBP
|
— |
| Cash and cash equivalents |
40,300,000
GBP
|
— | — |
24,300,000
GBP
|
— |
25. 7
GBP
|