v3.25.2
Fair value measurement - Schedule of Fair Value Measurement of Equity (Detail)
€ in Thousands
6 Months Ended
Jun. 30, 2025
EUR (€)
Disclosure of fair value measurement of equity [line items]  
At beginning of period € 982,887
At end of period 952,435
Level 3  
Disclosure of fair value measurement of equity [line items]  
At beginning of period 59,356
Investments 2,219
Disposals (5,853)
Fair value adjustments 2,851
Realized gains 145
Exchange rate losses (2,137)
At end of period € 56,581