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Notes Receivable from Employees
12 Months Ended
Dec. 31, 2020
Receivables [Abstract]  
Notes Receivable from Employees Notes Receivable from Employees
The table below summarizes the changes in the carrying amount of our notes receivable from employees:
 December 31,
 20202019
Notes receivable from employees — beginning$104,139 $113,699 
Notes granted34,383 28,879 
Repayments(8,043)(13,179)
Amortization(29,444)(26,294)
Cumulative translation adjustment and other(4,661)1,034 
Notes receivable from employees — ending96,374 104,139 
Less: current portion(35,253)(35,106)
Notes receivable from employees, net of current portion$61,121 $69,033 
As of December 31, 2020 and 2019, there were 320 and 303 notes outstanding, respectively. Total amortization expense for the years ended December 31, 2020, 2019 and 2018 was $29.4 million, $26.3 million and $36.4 million, respectively.