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Accrued Liabilities (Tables)
12 Months Ended
Dec. 31, 2019
Accrued Liabilities, Current [Abstract]  
Summary of Accrued Liabilities
Accrued liabilities consist of the following at December 31:
 
2019
 
2018
Accrued wages, bonuses and commissions
$
49,126

 
$
40,100

Other accrued liabilities
26,108

 
26,380

 
$
75,234

 
$
66,480