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ACCRUED LIABILITIES
12 Months Ended
Dec. 31, 2017
Payables and Accruals [Abstract]  
ACCRUED LIABILITIES
ACCRUED LIABILITIES
 
The composition of accrued liabilities is as follows (dollar amounts in thousands):
As of December 31,
 
2017
 
2016
Salaries and employee benefits
 
$
10,289

 
$
10,670

Sales, use and property tax (See Note 14)
 
3,367

 
2,376

Convention and meeting costs
 
4,970

 
5,129

Other
 
6,354

 
6,225

Total
 
$
24,980

 
$
24,400