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Partnership Distributions - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Mar. 14, 2016
Apr. 30, 2016
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2016
Dec. 31, 2015
Distribution Made to Limited Partner [Line Items]                
Partnership agreement day requirement of distribution of available cash             55 days  
Western Gas Partners, LP [Member]                
Distribution Made to Limited Partner [Line Items]                
Partnership agreement day requirement of distribution of available cash             45 days  
Units issued             946,261 498,009
Incentive distributions percentage             48.00%  
Western Gas Partners, LP [Member] | Minimum [Member]                
Distribution Made to Limited Partner [Line Items]                
Distribution sharing percentage             1.50%  
Western Gas Partners, LP [Member] | Maximum [Member]                
Distribution Made to Limited Partner [Line Items]                
Distribution sharing percentage             49.50%  
Western Gas Partners, LP [Member] | Private Investor [Member] | Over-Allotment Option [Member]                
Distribution Made to Limited Partner [Line Items]                
Units issued             7,892,220  
Western Gas Partners, LP [Member] | Class C Units [Member]                
Distribution Made to Limited Partner [Line Items]                
Discount rate percentage             6.00%  
Units issued     178,977       946,261 498,009
Western Gas Partners, LP [Member] | Series A Preferred Units [Member]                
Distribution Made to Limited Partner [Line Items]                
Series A Preferred units quarterly distribution per unit             $ 0.68  
Series A Preferred units quarterly cash distribution     $ 14.9 $ 14.9 $ 14.1 $ 1.9    
Number of days in prorated period         77 days 18 days    
Western Gas Partners, LP [Member] | Series A Preferred Units [Member] | Private Investor [Member]                
Distribution Made to Limited Partner [Line Items]                
Units issued 14,030,611         14,030,611    
Western Gas Partners, LP [Member] | Series A Preferred Units [Member] | Private Investor [Member] | Over-Allotment Option [Member]                
Distribution Made to Limited Partner [Line Items]                
Units issued   7,892,220     7,892,220   7,892,220