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Pension arrangements (Details) - Football League Pension and Life Assurance Scheme	1 Months Ended	6 Months Ended
	Sep. 30, 2021	Dec. 31, 2020 GBP (£) item	Jun. 30, 2020 GBP (£)	Dec. 31, 2019 GBP (£)	Aug. 31, 2017 GBP (£)
Pension arrangements
Number of participating employers | item		92
Total deficit on actuarial valuation					£ 30,400,000
Contribution to current accrual of benefits		£ 0
Total contributions paid by Group based on actuarial valuation		506,000
Percentage of increase in contributions	5.00%
Present value of outstanding contributions to pension arrangements		1,503,000
Less than 1 year
Pension arrangements
Present value of outstanding contributions to pension arrangements		502,000	£ 488,000	£ 474,000
Due after 1 year
Pension arrangements
Present value of outstanding contributions to pension arrangements		£ 1,001,000	£ 1,257,000	£ 1,503,000

X

- Definition

The decrease (increase) in net defined benefit liability (asset) resulting from contributions to a defined benefit plan by the employer. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2020-01-01
-Paragraph 141
-Subparagraph f
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_141_f&doctype=Standard
-URIDate 2020-01-01

+ Details

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X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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X

- Definition

The fair value of any plan assets, less the present value of the defined benefit obligation. [Refer: Plan assets [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2020-01-01
-Paragraph 57
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_57_a&doctype=Standard
-URIDate 2020-01-01

+ Details

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X

- Definition

The amount of contributions relating to current accrual of benefits.

+ References

No definition available.

+ Details

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X

- Definition

The number of participating employers in multi-employer defined benefit scheme.

+ References

No definition available.

+ Details

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- Definition

Present value of outstanding contributions to defined benefit plan, included in other payables

+ References

No definition available.

+ Details

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X

- Definition

The percentage of increase in net defined benefit liability (asset) resulting from contributions to a defined benefit plan by the employer.

+ References

No definition available.

+ Details

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- Details

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