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Notes Receivable from Employees
 12 Months Ended
Dec. 31, 2019
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,
 
2019
 
2018
Notes receivable from employees — beginning
$
113,699

 
$
123,796

Notes granted
28,879

 
32,937

Repayments
(13,179
)
 
(5,405
)
Amortization
(26,294
)
 
(36,418
)
Cumulative translation adjustment and other
1,034

 
(1,211
)
Notes receivable from employees — ending
104,139

 
113,699

Less: current portion
(35,106
)
 
(29,228
)
Notes receivable from employees, net of current portion
$
69,033

 
$
84,471


As of December 31, 2019 and 2018, there were 303 and 294 notes outstanding, respectively. Total amortization expense for the years ended December 31, 2019, 2018 and 2017 was $26.3 million, $36.4 million and $26.8 million, respectively.