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REDEEMABLE NONCONTROLLING INTEREST (Tables)
12 Months Ended
Dec. 31, 2017
Noncontrolling Interest [Abstract]  
Redeemable Noncontrolling Interest [Table Text Block] The following is a reconciliation of redeemable noncontrolling interest as of December 31, 2017 and 2016 (amounts in thousands):
Balance at January 1, 2016
$
77,174

   Reclassification as a result of ownership change
12,039

   Income attributable to redeemable noncontrolling interest
2,196

   Currency translation
3,844

   Redemption value adjustment
9,556

Balance at December 31, 2016
$
104,809

   Income attributable to redeemable noncontrolling interest
84

   Currency translation
1,907

   Redemption value adjustment
6,393

Balance at December 31, 2017
$
113,193