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Non-controlling Interests (Tables)
 12 Months Ended
Dec. 31, 2016
Non-controlling Interests [Abstract]  
Changes in Non-controlling Interest
The following table details the changes in non-controlling interest for the years ended December 31, 2016, 2015, and 2014 (in thousands):
 
  
2016
  
2015
  
2014
 
 
Non-controlling interest, beginning of period
  
635
  
$
584
  
$
454
 
Net income
  
3,506
   
2,438
   
1,676
 
Distributions
  
(1,912
)
  
(2,387
)
  
(1,548
)
Purchase of 10% membership interest
  
--
   
--
   
2
 
 
Non-controlling interest, end of period
 
$
2,229
  
$
635
  
$
584