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Stock Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Restricted Stock, Restricted Stock Unit and Performance Unit Activity
The following table summarizes the Company’s time-based restricted stock, time-based restricted stock unit, and performance-based restricted stock unit activity for the nine months ended September 30, 2016 (in thousands):
 
Time-Based Restricted Stock
 
Time-Based Restricted Stock Units
 
Performance-Based Restricted Stock Units
Outstanding at January 1, 2016
661

 
513

 
212

Awards granted (1)
37

 
567

 
242

Vested
(75
)
 
(15
)
 
—

Forfeited
(22
)
 
(13
)
 
—

Outstanding at September 30, 2016
601

 
1,052

 
454

 
 
 
 
 
 
(1) Weighted average grant date fair value
$
27.94

 
$
17.05

 
$
25.82