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Stock Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Nonvested Restricted Stock Units Activity Transactions related to awards for the six months ended June 30, 2018 are summarized below:
 
 
June 30, 2018
 
 
Number of
Awards 
 
Weighted
Average Grant
Date Fair Value
per Award 
Unvested RSU Awards Outstanding beginning of period
 
472

 
$
24.82

Vested
 
(56
)
 
$
22.61

Unvested RSU Awards Outstanding end of period
 
416

 
$
23.14