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Business Combinations And Capital Reorganization - Schedule of Impact On Earnings Per Share As A Result Of Reorganization (Detail)
12 Months Ended
Dec. 31, 2020
shares
Dec. 31, 2023
shares
Dec. 31, 2022
shares
Dec. 31, 2021
shares
Impact on earnings per share as a result of reorganization [line items]        
Number of shares outstanding 392,118 211,161,261 172,151,148 161,409,576
Shares for Basic EPS Wallbox Chargers 392,118      
Exchange ratio 240.99      
Adjusted number of shares 94,496,837      
Ordinary shares [member] | Common Stock Class A [Member]        
Impact on earnings per share as a result of reorganization [line items]        
Number of shares outstanding 280,737      
Ordinary shares [member] | Common Stock Class B [Member]        
Impact on earnings per share as a result of reorganization [line items]        
Number of shares outstanding 111,381