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Partners' Capital (Tables)
 6 Months Ended
Jun. 30, 2017
Partnership Units
 
 
 
 
 
 
 
 
 
 
  
As of June 30,
2017
 
  
As of December 31,
2016
 
Common units
  
 
123,631,036
  
  
 
122,094,633
  
General partner units
  
 
2,439,989
  
  
 
2,439,989
  
Preferred units
  
 
12,983,333
  
  
 
12,983,333
  
Total partnership units
  
 
139,054,358
  
  
 
137,517,955
  
 
  
 
 
 
  
 
 
 
Distributions to unitholders
 
April 20,       2017
January 18, 2017
April 26, 2016
January 20, 2016
Common unit-holders
 
 
 
 
Distributions per common unit declared
0.08
0.08
0.0750
0.2385
Common units entitled to distribution
123,631,036
122,343,706
120,409,456
120,409,456
General partner and IDR distributions
$195
$195
$183
$582
Preferred unit-holders
 
 
 
 
Distributions per preferred unit declared
0.21375
0.21375
0.21375
0.21975
Preferred units entitled to distribution
12,983,333
12,983,333
12,983,333
12,983,333