Consolidated Statements of Cash Flows - WES Operating (Parenthetical) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Borrowings, net of debt issuance costs	[1]	$ 3,586,173	$ 2,430,750
Repayments of debt	[2]	3,470,139	467,595
WES Operating [Member]
Borrowings, net of debt issuance costs	[3]	3,586,173	2,430,750
Repayments of debt	[4]	$ 3,470,139	439,595
Affiliates [Member]
Borrowings, net of debt issuance costs			11,000
Repayments of debt			439,600
Affiliates [Member] | WES Operating [Member]
Borrowings, net of debt issuance costs			11,000
Repayments of debt			$ 439,600

[1] For the three months ended March 31, 2019, includes an $11.0 million borrowing under the APCWH Note Payable.

[2] For the three months ended March 31, 2019, includes a $439.6 million repayment to settle the APCWH Note Payable. See Note 6.

[3] For the three months ended March 31, 2019, includes an $11.0 million borrowing under the APCWH Note Payable.

[4] For the three months ended March 31, 2019, includes a $439.6 million repayment to settle the APCWH Note Payable. See Note 6.