Components of Working Capital - Accounts Receivable, Net Table (Details) - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Trade receivables, net		$ 212,342	$ 221,119
Other receivables, net		81	45
Total accounts receivable, net	[1]	212,423	221,164	[2]
WES Operating [Member]
Trade receivables, net		214,067	221,328
Other receivables, net		81	45
Total accounts receivable, net	[3]	$ 214,148	$ 221,373	[2]

[1] Accounts receivable, net includes amounts receivable from affiliates (as defined in Note 1) of $68.5 million and $72.6 million as of March 31, 2019, and December 31, 2018, respectively.

[2] Financial information has been recast to include the financial position and results attributable to AMA. See Note 1 and Note 3.

[3] Accounts receivable, net includes amounts receivable from affiliates (as defined in Note 1) of $70.2 million and $72.8 million as of March 31, 2019, and December 31, 2018, respectively.