Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

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v3.24.1.1.u2
Cover
 12 Months Ended
Dec. 31, 2023
shares
Document Information [Line Items]  
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Document Period End Date Dec. 31, 2023
Current Fiscal Year End Date --12-31
Document Transition Report false
Document Shell Company Report false
Entity File Number 001-41329
Entity Registrant Name Allego N.V.
Entity Incorporation, State or Country Code P7
Entity Address, Address Line One Westervoortsedijk 73 KB
Entity Address, Postal Zip Code 6827
Entity Address, City or Town Arnhem
Entity Address, Country NL
Title of 12(b) Security Ordinary Shares
Trading Symbol ALLG
Security Exchange Name NYSE
Entity Common Stock, Shares Outstanding 271,010,790
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Accelerated Filer
Entity Emerging Growth Company true
Entity Ex Transition Period false
ICFR Auditor Attestation Flag false
Document Financial Statement Error Correction false
Document Accounting Standard International Financial Reporting Standards
Entity Shell Company false
Entity Central Index Key 0001874474
Document Fiscal Year Focus 2023
Document Fiscal Period Focus FY
Amendment Flag false
Business Contact  
Document Information [Line Items]  
Entity Address, Address Line One Westervoortsedijk 73 KB
Entity Address, Postal Zip Code 6827
Entity Address, City or Town Arnhem
Entity Address, Country NL
Contact Personnel Name Mathieu Bonnet
City Area Code 31
Local Phone Number 88 033 3033