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Restructuring Charges (Tables)
 6 Months Ended
Jun. 30, 2017
Restructuring Charges [Abstract]  
Restructuring and Related Costs [Table Text Block]
The following table summarizes the details of changes in our restructuring-related accrual for the period ending June 30, 2017 (in thousands):

 
Accrued Balance December 31, 2016
 
Charges
Incurred
 
Payments
 
Other Adjustments
 
Accrued Balance
June 30,
 2017
Severance pay and benefits
$
53

 
$
11,807

 
$
(7,313
)
 
$
(17
)
 
$
4,530

Employment agreement buyout
1,477

 
—

 
(183
)
 
—

 
1,294

Facility closure expenses
—

 
4,019

 
(2,067
)
 
(1,952
)
 
—

 
$
1,530

 
$
15,826

 
$
(9,563
)
 
$
(1,969
)
 
$
5,824