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Stock Incentive Plans (Tables)
3 Months Ended
Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of restricted stock awards
A summary of our restricted stock awards from January 1, 2019 to March 31, 2019 is as follows:
 
Number of
Shares
 
Weighted-
Average Grant
Date Fair
Value
Unvested balance at January 1, 2019
641,844

 
$
10.25

Granted
73,240

 
10.65

Vested
(300,575
)
 
10.07

Unvested balance at March 31, 2019
414,509

 
$
10.41

Schedule of nonvested performance-based units activity
A summary of our PSUs from January 1, 2019 to March 31, 2019 is as follows:
 
Number of
Target Units
 
Weighted-
Average Grant
Date Fair
Value
Unvested balance at January 1, 2019
781,923

 
$
11.19

Granted
296,050

 
10.14

Additional units from dividends
10,801

 
9.05

Vested (1)
(251,375
)
 
8.80

Unvested balance at March 31, 2019
837,399

 
$
10.28


______________________
(1)
The number of shares of common stock earned for the PSUs vested in 2019 was equal to 74.33% of the PSU Target Award.