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Performance Awards (Tables)
 3 Months Ended
Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Performance Activity
The following table summarizes performance awards granted in the form of cash awards under the 2014 EIP in November 2018, 2017 and 2016: 
Grant Date
 
Grant Amount
 
Adjustments
 
Forfeitures
 
Adjusted Award Value at
March 31, 2019
 
Vesting Schedule
 
Remaining Periods (in Months) to Vesting
November 2016
 
$
1,434

 
$
(16
)
 
$
(88
)
 
$
1,330

 
November 2019
 
7
November 2017
 
1,584

 
(54
)
 
(53
)
 
1,477

 
November 2020
 
19
November 2018
 
1,590

 
(84
)
 
(55
)
 
1,451

 
November 2021
 
31
 
 
$
4,608

 
$
(154
)
 
$
(196
)
 
$
4,258