v3.26.1
Fair value measurement - Schedule of Financial Assets (Details) - EUR (€)
€ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Disclosure of financial assets [line items]    
Financial assets € 540,514 € 570,191
Other current financial assets 71,584 77,432
Level 1    
Disclosure of financial assets [line items]    
Financial assets 7,016 10,309
Other current financial assets 7,016 10,309
Level 2    
Disclosure of financial assets [line items]    
Financial assets 473,418 501,083
Other current financial assets 8,951 12,747
Level 3    
Disclosure of financial assets [line items]    
Financial assets 60,080 58,799
Other current financial assets 55,617 54,376
Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Financial assets 69,066 73,521
Other current financial assets 64,251 68,635
Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Financial assets 12,853 14,102
Other current financial assets 3,592 7,047
Amortized cost    
Disclosure of financial assets [line items]    
Financial assets 458,595 482,568
Other current financial assets 3,741 1,750
Derivative financial instruments    
Disclosure of financial assets [line items]    
Financial assets 9,261 7,055
Derivative financial instruments | Level 1    
Disclosure of financial assets [line items]    
Financial assets 0 0
Derivative financial instruments | Level 2    
Disclosure of financial assets [line items]    
Financial assets 9,261 7,055
Derivative financial instruments | Level 3    
Disclosure of financial assets [line items]    
Financial assets 0 0
Derivative financial instruments | Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Financial assets 0 0
Derivative financial instruments | Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Financial assets 9,261 7,055
Derivative financial instruments | Amortized cost    
Disclosure of financial assets [line items]    
Financial assets 0 0
Cash and cash equivalents    
Disclosure of financial assets [line items]    
Financial assets 226,715 220,121
Cash and cash equivalents | Level 1    
Disclosure of financial assets [line items]    
Financial assets 0 0
Cash and cash equivalents | Level 2    
Disclosure of financial assets [line items]    
Financial assets 226,715 220,121
Cash and cash equivalents | Level 3    
Disclosure of financial assets [line items]    
Financial assets 0 0
Cash and cash equivalents | Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Financial assets 0 0
Cash and cash equivalents | Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Financial assets 0 0
Cash and cash equivalents | Amortized cost    
Disclosure of financial assets [line items]    
Financial assets 226,715 220,121
Trade receivables    
Disclosure of financial assets [line items]    
Financial assets 192,331 227,087
Trade receivables | Level 1    
Disclosure of financial assets [line items]    
Financial assets 0 0
Trade receivables | Level 2    
Disclosure of financial assets [line items]    
Financial assets 192,331 227,087
Trade receivables | Level 3    
Disclosure of financial assets [line items]    
Financial assets 0 0
Trade receivables | Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Financial assets 0 0
Trade receivables | Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Financial assets 0 0
Trade receivables | Amortized cost    
Disclosure of financial assets [line items]    
Financial assets 192,331 227,087
Other non-current financial assets    
Disclosure of financial assets [line items]    
Financial assets 40,623 38,496
Other non-current financial assets | Level 1    
Disclosure of financial assets [line items]    
Financial assets 0 0
Other non-current financial assets | Level 2    
Disclosure of financial assets [line items]    
Financial assets 36,160 34,073
Other non-current financial assets | Level 3    
Disclosure of financial assets [line items]    
Financial assets 4,463 4,423
Other non-current financial assets | Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Financial assets 4,815 4,886
Other non-current financial assets | Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Financial assets 0 0
Other non-current financial assets | Amortized cost    
Disclosure of financial assets [line items]    
Financial assets 35,808 33,610
Other current financial assets    
Disclosure of financial assets [line items]    
Financial assets 71,584 77,432
Other current financial assets | Level 1    
Disclosure of financial assets [line items]    
Financial assets 7,016 10,309
Other current financial assets | Level 2    
Disclosure of financial assets [line items]    
Financial assets 8,951 12,747
Other current financial assets | Level 3    
Disclosure of financial assets [line items]    
Financial assets 55,617 54,376
Other current financial assets | Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Financial assets 64,251 68,635
Other current financial assets | Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Financial assets 3,592 7,047
Other current financial assets | Amortized cost    
Disclosure of financial assets [line items]    
Financial assets 3,741 1,750
Private equity    
Disclosure of financial assets [line items]    
Other current financial assets 22,156 21,565
Private equity | Level 1    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Private equity | Level 2    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Private equity | Level 3    
Disclosure of financial assets [line items]    
Other current financial assets 22,156 21,565
Private equity | Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Other current financial assets 22,156 21,565
Private equity | Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Private equity | Amortized cost    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Hedge funds    
Disclosure of financial assets [line items]    
Other current financial assets 11,627 11,370
Hedge funds | Level 1    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Hedge funds | Level 2    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Hedge funds | Level 3    
Disclosure of financial assets [line items]    
Other current financial assets 11,627 11,370
Hedge funds | Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Other current financial assets 11,627 11,370
Hedge funds | Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Hedge funds | Amortized cost    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Private debt    
Disclosure of financial assets [line items]    
Other current financial assets 10,978 11,720
Private debt | Level 1    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Private debt | Level 2    
Disclosure of financial assets [line items]    
Other current financial assets 0 284
Private debt | Level 3    
Disclosure of financial assets [line items]    
Other current financial assets 10,978 11,436
Private debt | Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Other current financial assets 10,978 11,720
Private debt | Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Private debt | Amortized cost    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Real estate funds    
Disclosure of financial assets [line items]    
Other current financial assets 10,856 10,005
Real estate funds | Level 1    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Real estate funds | Level 2    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Real estate funds | Level 3    
Disclosure of financial assets [line items]    
Other current financial assets 10,856 10,005
Real estate funds | Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Other current financial assets 10,856 10,005
Real estate funds | Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Real estate funds | Amortized cost    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Money market funds and floating income    
Disclosure of financial assets [line items]    
Other current financial assets 8,312 13,864
Money market funds and floating income | Level 1    
Disclosure of financial assets [line items]    
Other current financial assets 3,102 3,151
Money market funds and floating income | Level 2    
Disclosure of financial assets [line items]    
Other current financial assets 5,210 10,713
Money market funds and floating income | Level 3    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Money market funds and floating income | Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Other current financial assets 5,210 10,713
Money market funds and floating income | Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Other current financial assets 3,102 3,151
Money market funds and floating income | Amortized cost    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Guarantee deposits    
Disclosure of financial assets [line items]    
Other current financial assets 3,473 1,492
Guarantee deposits | Level 1    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Guarantee deposits | Level 2    
Disclosure of financial assets [line items]    
Other current financial assets 3,473 1,492
Guarantee deposits | Level 3    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Guarantee deposits | Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Guarantee deposits | Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Guarantee deposits | Amortized cost    
Disclosure of financial assets [line items]    
Other current financial assets 3,473 1,492
Equity    
Disclosure of financial assets [line items]    
Other current financial assets 3,424 3,262
Equity | Level 1    
Disclosure of financial assets [line items]    
Other current financial assets 3,424 3,262
Equity | Level 2    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Equity | Level 3    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Equity | Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Other current financial assets 3,424 3,262
Equity | Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Equity | Amortized cost    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Fixed income    
Disclosure of financial assets [line items]    
Other current financial assets 490 3,896
Fixed income | Level 1    
Disclosure of financial assets [line items]    
Other current financial assets 490 3,896
Fixed income | Level 2    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Fixed income | Level 3    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Fixed income | Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Fixed income | Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Other current financial assets 490 3,896
Fixed income | Amortized cost    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Financial receivables    
Disclosure of financial assets [line items]    
Other current financial assets 268 258
Financial receivables | Level 1    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Financial receivables | Level 2    
Disclosure of financial assets [line items]    
Other current financial assets 268 258
Financial receivables | Level 3    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Financial receivables | Fair value through profit or loss (FVPL)    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Financial receivables | Fair value through other comprehensive income (FVOCI)    
Disclosure of financial assets [line items]    
Other current financial assets 0 0
Financial receivables | Amortized cost    
Disclosure of financial assets [line items]    
Other current financial assets € 268 € 258