Transactions With Affiliates - Equipment Purchases and Sales Table (details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Related Party Transaction [Line Items]
Partners' capital adjustment	$ (43)
Partners' capital adjustment		615	[1]
Western Gas Partners [Member] | Affiliated Entity [Member] | Purchases [Member]
Related Party Transaction [Line Items]
Consideration given for equipment	4,702	1,436
Net carrying value	4,745	773
Partners' capital adjustment	(43)
Partners' capital adjustment		663
Western Gas Partners [Member] | Affiliated Entity [Member] | Sales [Member]
Related Party Transaction [Line Items]
Consideration received for equipment	0	82
Net carrying value	0	34
Partners' capital adjustment	$ 0	$ (48)

[1] Financial information has been recast to include the financial position and results attributable to the TEFR Interests. See Note 1 and Note 2.