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Restructuring Costs (Tables)
 12 Months Ended
Dec. 31, 2016
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring
The restructuring and asset impairment activity for the year ended December 31, 2016 was as follows:
($ in thousands)
 
Employee Severance and Benefits
 
Asset Impairments
 
Total
Accrued restructuring balance as of December 31, 2015
 
$
—

 
$
—

 
$
—

Additional accruals
 
301

 
34

 
335

Cash payments
 
(282
)
 
—

 
(282
)
Non-cash settlements
 
—

 
(34
)
 
(34
)
Accrued restructuring balance as of December 31, 2016
 
$
19

 
$
—

 
$
19