Allego N.V. Post-effective amendment to a registration statement that is not immediately effective upon filing

Post-effective amendment to a registration statement that is not immediately effective upon filing

Cover
- Cover Page
Financial Statements
Notes to Financial Statements
Accounting Policies
- Basis of preparation and changes to the Group's accounting policies (Policies)
Notes Tables
Notes Details

Borrowings - Summary of Breakdown of Borrowings (Parenthetical) (Detail)

v3.22.2.2

Borrowings - Summary of Breakdown of Borrowings (Parenthetical) (Detail) - EUR (€) € in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of detailed information about borrowings [line items]
Euribor Floored Rate	0.00%	0.00%
Borrowings, interest rate	0.10%
Borrowings	€ 137,960	€ 213,128	€ 159,610
Shareholder Loans [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	9.00%	9.00%
Borrowings, maturity		2035
Borrowings		€ 100,193	92,031
Top of range [member] \| Shareholder Loans [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings, maturity	November 30, 2035	November 30, 2035
Borrowings [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	5.00%
Borrowings [Member] \| Shareholder Loans [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings	€ 0	€ 8,129	€ 7,853
Borrowings [Member] \| Top of range [member]
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	0.25%

- Definition

Euribor Floored Rate.

+ References

No definition available.

+ Details

Name:	allg_EuriborFlooredRate
Namespace Prefix:	allg_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_Borrowings
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2021-01-01
-Paragraph 7
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_7&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_BorrowingsInterestRate
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The maturity of borrowings. [Refer: Borrowings]

+ References

+ Details

Name:	ifrs-full_BorrowingsMaturity
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_BorrowingsByNameAxis=allg_ShareholderLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=allg_BorrowingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: