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Stock-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2016
Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]  
Schedule of Share-based Compensation, Restricted Stock Units Award Activity
Our RSU activity for the nine months ended September 30, 2016 was as follows:
 
 
 
Nine Months Ended
 September 30, 2016
 
 
 
(unaudited)
 
 
 
Number of
Shares
 
Weighted 
Average Fair 
Value at Grant Date
 
 
 
 
 
 
 
 
 
Non-vested at beginning of period
 
 
1,220,097
 
$
6.65
 
Granted RSUs
 
 
1,259,667
 
$
5.94
 
Vested
 
 
(635,290)
 
$
6.33
 
Non-vested at end of period
 
 
1,844,474
 
$
6.27