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Personnel expenses and employee information - Total Number of Payroll and Temporary Personnel Employed in FTE's Per Sector (Detail) - employee
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Personnel Employed Per Sector [Line Items]      
Average number of payroll employees employed (in FTEs) 33,071 28,223 24,727
Total employees (in FTEs) 39,086 32,016 28,073
Customer Support      
Personnel Employed Per Sector [Line Items]      
Total employees (in FTEs) 8,901 7,485 6,429
Manufacturing and Supply Chain Management      
Personnel Employed Per Sector [Line Items]      
Total employees (in FTEs) 9,953 8,237 7,680
Strategic Supply Management      
Personnel Employed Per Sector [Line Items]      
Total employees (in FTEs) 1,541 707 346
General & Administrative      
Personnel Employed Per Sector [Line Items]      
Total employees (in FTEs) 3,768 2,761 2,061
Sales and Mature Products and Services      
Personnel Employed Per Sector [Line Items]      
Total employees (in FTEs) 742 766 744
Research & Development      
Personnel Employed Per Sector [Line Items]      
Total employees (in FTEs) 14,181 12,060 10,813
Temporary FTEs      
Personnel Employed Per Sector [Line Items]      
Total employees (in FTEs) 2,974 2,155 1,459
Payroll FTEs      
Personnel Employed Per Sector [Line Items]      
Total employees (in FTEs) 36,112 29,861 26,614
Netherlands      
Personnel Employed Per Sector [Line Items]      
Average number of payroll employees employed (in FTEs) 16,722 14,222 12,812