Annual and transition report of foreign private issuers [Sections 13 or 15(d)]

Revenue from Contract with Customers - Summary of Disaggregation of Revenue from Contracts with Customers (Details)

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Revenue from Contract with Customers - Summary of Disaggregation of Revenue from Contracts with Customers (Details) - EUR (€)
€ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers € 1,186,282 € 1,104,036 € 1,085,354
High-Value Solutions      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 546,374 422,351 366,433
Other Containment and Delivery Solutions      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 491,800 511,391 512,855
Revenue from Engineering      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 148,108 170,294 206,066
EMEA      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 690,342 667,830 634,047
APAC      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 101,479 96,235 102,901
North America      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 362,062 308,948 317,536
South America      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 32,399 31,022 30,870
Goods and Services Transferred at a Point in Time      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 1,035,227 919,047 877,786
Goods and Services Transferred Over Time      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 151,055 184,989 207,568
Biopharmaceutical and Diagnostic Solutions      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 1,038,174 933,742 879,288
Biopharmaceutical and Diagnostic Solutions | High-Value Solutions      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 546,374 422,351 366,433
Biopharmaceutical and Diagnostic Solutions | Other Containment and Delivery Solutions      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 491,800 511,391 512,855
Biopharmaceutical and Diagnostic Solutions | EMEA      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 585,194 556,324 523,681
Biopharmaceutical and Diagnostic Solutions | APAC      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 87,715 83,293 76,436
Biopharmaceutical and Diagnostic Solutions | North America      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 335,404 267,520 253,870
Biopharmaceutical and Diagnostic Solutions | South America      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 29,861 26,605 25,301
Biopharmaceutical and Diagnostic Solutions | Goods and Services Transferred at a Point in Time      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 1,008,476 895,157 861,551
Biopharmaceutical and Diagnostic Solutions | Goods and Services Transferred Over Time      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 29,698 38,585 17,737
Engineering      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 148,108 170,294 206,066
Engineering | Revenue from Engineering      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 148,108 170,294 206,066
Engineering | EMEA      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 105,148 111,506 110,366
Engineering | APAC      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 13,764 12,942 26,465
Engineering | North America      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 26,658 41,429 63,666
Engineering | South America      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 2,538 4,417 5,569
Engineering | Goods and Services Transferred at a Point in Time      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers 26,751 23,890 16,235
Engineering | Goods and Services Transferred Over Time      
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]      
Revenue from contracts with customers € 121,357 € 146,404 € 189,831