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REDEEMABLE NONCONTROLLING INTEREST (Tables)
6 Months Ended
Jun. 30, 2018
Noncontrolling Interest [Abstract]  
Redeemable Noncontrolling Interest [Table Text Block] The following is a reconciliation of redeemable noncontrolling interest as of June 30, 2018 and 2017 (amounts in thousands):
 
2018
 
2017
Balance at January 1
$
113,193

 
$
104,809

   Loss attributable to redeemable noncontrolling interest
(461
)
 
(190
)
   Currency translation
(2,207
)
 
1,121

   Redemption value adjustment
7,021

 
3,099

Balance at June 30
$
117,546

 
$
108,839