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Non-controlling Interests (Tables)
 6 Months Ended
Jun. 30, 2018
Non-controlling Interests [Abstract]  
Changes in Non-Controlling Interest
The following table details the changes in non-controlling interest for the three and six months ended June 30, 2018 and 2017 (in thousands):

  
Three Months Ended June 30,
  
Six Months Ended June 30,
 
  
2018
  
2017
  
2018
  
2017
 
 
Non-controlling interest, beginning of period
 
$
1,147
  
$
906
  
$
913
  
$
2,229
 
Net income
  
531
   
239
   
765
   
352
 
Distributions
  
(905
)
  
(910
)
  
(905
)
  
(2,346
)
Non-controlling interest, end of period
 
$
773
  
$
235
  
$
773
  
$
235