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Selling, general and administrative expenses
12 Months Ended
Dec. 31, 2022
Selling, General and Administrative Expense [Abstract]  
Selling, general and administrative expenses Selling, general and administrative expenses
Selling, general and administrative expenses consisted of the following for the years ended December 31, 2022, 2021 and 2020:
Year Ended December 31,
202220212020
Personnel expenses$174,004 $150,286 $104,765 
Share-based compensation102,848 96,087 69,187 
Professional services37,805 28,999 24,480 
Travel expenses24,752 5,649 7,809 
Office expenses23,930 15,417 12,974 
Other expenses36,191 21,450 22,946 
$399,530 $317,888 $242,161