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LONG-TERM LIABILITIES (Tables)
 12 Months Ended
Dec. 31, 2019
Other Liabilities [Abstract]  
Schedule of long-term liabilities
Long-term liabilities consisted of the following (in thousands):
 
December 31,
 
2019
 
2018
Finance lease obligations
$
3,149

 
$
2,363

Deferred rent
—

 
3,039

Restructuring
3,510

 
979

Pension obligations
9,954

 
7,006

Taxes payable
1,991

 
1,818

Deferred purchase consideration
—

 
30,000

Other
1,683

 
2,425

 
20,287

 
47,630

Current portion
(3,698
)
 
(16,833
)
Long-term liabilities, net of current portion
$
16,589

 
$
30,797