Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Segmentation - Summary of the Amount of Revenue from External Customers (Detail)

v3.22.1
Segmentation - Summary of the Amount of Revenue from External Customers (Detail) - EUR (€)
€ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of Revenue From External Customers [Line Items]      
Revenue € 86,291 € 44,249 € 25,822
The Netherlands      
Disclosure of Revenue From External Customers [Line Items]      
Revenue 29,689 16,369 11,447
Belgium      
Disclosure of Revenue From External Customers [Line Items]      
Revenue 4,358 2,874 1,184
Germany      
Disclosure of Revenue From External Customers [Line Items]      
Revenue 14,477 13,465 12,668
France      
Disclosure of Revenue From External Customers [Line Items]      
Revenue 32,098 8,285 55
Other      
Disclosure of Revenue From External Customers [Line Items]      
Revenue € 5,669 € 3,256 € 468