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Partnership Distributions - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Jun. 30, 2016
Distribution Made to Limited Partner [Line Items]        
Partnership agreement day requirement of distribution of available cash       55 days
Units outstanding 218,922,303   218,919,380 218,922,303
Western Gas Partners, LP [Member]        
Distribution Made to Limited Partner [Line Items]        
Partnership agreement day requirement of distribution of available cash       45 days
Western Gas Partners, LP [Member] | Class C Units [Member]        
Distribution Made to Limited Partner [Line Items]        
Discount rate percentage       6.00%
PIK Class C units   210,562 323,584  
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 $ 14.1 $ 1.9    
Number of days in prorated period 77 days 18 days    
Units outstanding   14,030,611    
Western Gas Partners, LP [Member] | Series A Preferred Units [Member] | Option on Securities [Member]        
Distribution Made to Limited Partner [Line Items]        
Units outstanding 7,892,220     7,892,220