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RESTRUCTURING COSTS AND ACCRUALS (Tables)
 12 Months Ended
Dec. 31, 2016
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring and Related Costs [Table Text Block]
The following table sets forth the activity in the restructuring accruals for the years ended December 31, 2016, 2015 and 2014 (in thousands):
 
Employee-
Related
 
Facilities-
Related
& Other
 
Total
Accrual balance at January 1, 2014
$
2,399

 
$
6,102

 
$
8,501

Revisions of estimated liabilities
—

 
(165
)
 
(165
)
Accretion
—

 
565

 
565

Cash payments
(2,340
)
 
(4,172
)
 
(6,512
)
Foreign exchange impact on ending balance
(1
)
 
(45
)
 
(46
)
Accrual balance at December 31, 2014
58

 
2,285

 
2,343

New restructuring charges – operating expenses
5,766

 
—

 
5,766

Revisions of estimated liabilities
—

 
539

 
539

Accretion
—

 
226

 
226

Cash payments
(315
)
 
(1,301
)
 
(1,616
)
Foreign exchange impact on ending balance
—

 
(78
)
 
(78
)
Accrual balance at December 31, 2015
5,509

 
1,671

 
7,180

New restructuring charges – operating expenses
10,491

 
943

 
11,434

Revisions of estimated liabilities
(497
)
 
763

 
266

Accretion
—

 
287

 
287

Cash payments
(8,225
)
 
(1,701
)
 
(9,926
)
Non-cash write-offs
—

 
1,137

 
1,137

Foreign exchange impact on ending balance
(260
)
 
(7
)
 
(267
)
Accrual balance at December 31, 2016
$
7,018

 
$
3,093

 
$
10,111