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OTHER NON-CURRENT LIABILITIES
 3 Months Ended
Mar. 31, 2017
Other Liabilities Disclosure [Abstract]  
OTHER NON-CURRENT LIABILITIES
OTHER NON-CURRENT LIABILITIES
Other non-current liabilities consist of the following:
(in thousands)
 
March 31,
2017
 
December 31,
2016
 
 
 
 
 
Deferred revenue
 
$
5,089

 
$
5,680

Other non-current liabilities
 
4,597

 
4,800

 
 
 
 
 
Total
 
$
9,686

 
$
10,480