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ACCRUED LIABILITIES (Tables)
3 Months Ended
Mar. 31, 2018
Payables and Accruals [Abstract]  
Schedule of Accrued Liabilities
Accrued liabilities as of March 31, 2018 and December 31, 2017 consisted of the following (in thousands):
 
March 31, 2018
 
December 31, 2017
Accrued tax liabilities
$
32,063

 
$
32,617

Accrued compensation
27,098

 
17,725

Accrued sales and marketing
6,549

 
3,458

Other accrued expenses
17,703

 
19,865

Total accrued liabilities
$
83,413

 
$
73,665