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CONSOLIDATED BALANCE SHEETS (Parenthetical) - € / shares
Dec. 31, 2022
Dec. 31, 2021
CONSOLIDATED BALANCE SHEETS    
Ordinary shares, par value (in euros per share) € 0.05 € 0.05
Ordinary shares, authorized 80,000,000 80,000,000
Ordinary shares, issued 46,968,032 46,298,635
Ordinary shares, outstanding 46,968,032 46,298,635