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RESTRUCTURING COSTS AND ACCRUALS (Tables)
 9 Months Ended
Sep. 30, 2013
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring and Related Costs
The following table sets forth the activity in the restructuring accruals for the nine months ended September 30, 2013 (in thousands):
 
Non-Acquisition-Related
Restructuring
Liabilities
 
Acquisition-Related
Restructuring
Liabilities
 
 
 
Employee-
Related
 
Facilities/Other-
Related
 
Employee-
Related
 
Facilities-
Related
 
Total
Accrual balance at December 31, 2012
$
4,299

 
$
10,839

 
$
—

 
$
595

 
$
15,733

New restructuring charges – operating expenses
1,511

 
—

 
—

 
—

 
1,511

Revisions of estimated liabilities
57

 
1,483

 
—

 
(172
)
 
1,368

Accretion
—

 
411

 
—

 
26

 
437

Cash payments
(4,933
)
 
(5,397
)
 
—

 
(341
)
 
(10,671
)
Foreign exchange impact on ending balance
(33
)
 
(58
)
 
—

 
—

 
(91
)
Accrual balance at September 30, 2013
$
901

 
$
7,278

 
$
—

 
$
108

 
$
8,287