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Equity Awards (Tables)
 3 Months Ended
Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity
Information related to stock options at March 31, 2018 is as follows:
 
 
Number of
Stock Options
 
Weighted Average Option Price
 
Average  Remaining Contractual Life (Years)
 
Aggregate Intrinsic Value
Outstanding at January 1, 2018
 
206,854

 
$
13.19

 

 

Granted
 
—

 
—

 
 
 
 
  Exercised
 
—

 
—

 

 

  Cancelled
 
—

 
—

 

 

  Expired
 
—

 
—

 
 
 
 
Outstanding at March 31, 2018
 
206,854

 
$
13.19

 
6.3
 
$
2,700,523
Schedule of Share-based Compensation, Restricted Stock Units Award Activity
Information related to RSUs at March 31, 2018 is as follows:
 
 
Number of Unvested RSUs
 
Weighted Average Grant Date Fair Value
 
Average Remaining Contractual Life (Years)
 
Aggregate Intrinsic Value
Outstanding at January 1, 2018
 
726,936

 
$
22.60

 

 

  Granted
 
33,678

 
22.76

 

 

  Vested
 
(288,895
)
 
22.18

 

 

  Cancelled
 
(13,971
)
 
21.67

 

 

Outstanding at March 31, 2018
 
457,748

 
$
22.90

 
1.1
 
$
12,015,885