v3.26.1
Provisions - Provision for aircraft maintenance on leased aircraft (Details)
€ in Millions
12 Months Ended
Mar. 31, 2026
EUR (€)
aircraft
Mar. 31, 2025
EUR (€)
aircraft
Mar. 31, 2024
EUR (€)
aircraft
Provision for aircraft maintenance on leased aircraft      
Disclosure of other provisions [line items]      
Other provisions at beginning of year € 194.6 € 184.1 € 169.8
Increase in provision during the year 7.0 18.5 27.5
Utilization of provision upon the hand-back of aircraft   (8.0) (13.2)
Other provisions at end of year € 201.6 € 194.6 € 184.1
Airbus A320      
Disclosure of other provisions [line items]      
Number of leased aircraft returned to lessor | aircraft 0 1 2