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Westlake Chemical Partners LP (Tables)
9 Months Ended
Sep. 30, 2018
Partners' Capital [Abstract]  
Schedule of Incentive Distributions Made to Managing Members or General Partners by Distribution [Table Text Block]
 
 
Marginal Percentage Interest in Distributions
Total Quarterly Distribution Per Unit
 
Unitholders
 
IDR Holders
Above $1.2938 up to $1.4063
 
85.0
%
 
15.0
%
Above $1.4063 up to $1.6875
 
75.0
%
 
25.0
%
Above $1.6875
 
50.0
%
 
50.0
%
 
 
Marginal Percentage Interest in Distributions
Total Quarterly Distribution Per Unit
 
Unitholders
 
IDR Holders
Above $0.3163 up to $0.3438
 
85.0
%
 
15.0
%
Above $0.3438 up to $0.4125
 
75.0
%
 
25.0
%
Above $0.4125
 
50.0
%
 
50.0
%