Allego N.V. Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Share-based payments - Summary of Range of Exercise Prices of Outstanding Share Options (Details)	Jun. 30, 2023 shares € / shares	Dec. 31, 2022 shares	Jun. 30, 2022 shares	Dec. 31, 2021 shares
Management Incentive Plan
Disclosure of range of exercise prices of outstanding share options [line items]
Number of options exercisable (in shares)	2,658,426
Management Incentive Plan \| Performance Options
Disclosure of range of exercise prices of outstanding share options [line items]
Number of options exercisable (in shares)	1,329,213	1,329,213	1,329,213	0
Management Incentive Plan \| September 17, 2033
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price (in EUR per share) \| € / shares	€ 0.12
Number of options exercisable (in shares)	1,329,213
Management Incentive Plan \| May 13, 2032
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price (in EUR per share) \| € / shares	€ 0.12
Number of options exercisable (in shares)	1,329,213
Long-term Incentive Plan \| Performance Options
Disclosure of range of exercise prices of outstanding share options [line items]
Number of options exercisable (in shares)			1,039,222	0
Long-term Incentive Plan \| May 24, 2032 \| Performance Options
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price (in EUR per share) \| € / shares	€ 0.12
Number of options exercisable (in shares)	1,039,222