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Stock Based Compensation (Tables)
 3 Months Ended
Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of expenses related to share-based payments
The following table highlights the expense related to stock based compensation for the three months ended March 31, 2017 and 2016:
 
 
Three Months Ended March 31,
(in thousands)
 
2017
 
2016
Restricted stock
 
$
136

 
$
692

Restricted stock units
 
817

 
879

Performance-based restricted stock units
 
187

 
2

Stock options
 
91

 
316

Stock based compensation
 
$
1,231

 
$
1,889