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OTHER LONG-TERM LIABILITIES Long-Term Liabilities (Tables)
6 Months Ended
Jun. 30, 2018
Other Liabilities Disclosure [Abstract]  
Long-term liabilities
Other long-term liabilities consisted of the following (in thousands):
 
June 30, 2018
 
December 31, 2017
Deferred rent
$
1,677

 
$
2,970

Accrued restructuring
447

 
731

Deferred compensation
5,279

 
5,546

   Total
$
7,403

 
$
9,247