Consolidated Statements of Equity and Partners' Capital - USD ($) $ in Thousands |
Total |
Western Gas Partners, LP [Member] |
Chipeta [Member] |
Net Investment by Anadarko [Member] |
Common Units [Member] |
Noncontrolling Interests [Member] |
Noncontrolling Interests [Member]
Western Gas Partners, LP [Member]
|
Noncontrolling Interests [Member]
Chipeta [Member]
|
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Balance at Dec. 31, 2015 | [1] | $ 4,645,456 | $ 1,155,956 | $ 1,060,842 | $ 2,428,658 | |||||||||||||||||
Increase (Decrease) in Partners' Capital [Roll Forward] | ||||||||||||||||||||||
Net income (loss) | [1] | 658,286 | 72,632 | 334,446 | 251,208 | |||||||||||||||||
Above-market component of swap agreements with Anadarko | [1],[2] | 45,820 | 45,820 | |||||||||||||||||||
WES equity transactions, net | [1],[3] | 0 | (4,180) | 4,180 | ||||||||||||||||||
WES issuance of Series A Preferred units, net of offering expenses | [1] | 686,937 | 686,937 | |||||||||||||||||||
Distributions to noncontrolling interest owners | [1] | $ (294,841) | $ (13,784) | $ (294,841) | $ (13,784) | |||||||||||||||||
Distributions to WGP unitholders | [1] | (374,082) | (374,082) | |||||||||||||||||||
Acquisitions from affiliates | [1] | (712,500) | (553,833) | (158,667) | ||||||||||||||||||
Revision to Deferred purchase price obligation – Anadarko | [1],[4] | 139,487 | 139,487 | |||||||||||||||||||
Contributions of equity-based compensation to WES by Anadarko | [1] | 4,170 | 4,170 | |||||||||||||||||||
Net pre-acquisition contributions from (distributions to) Anadarko | [1] | (42,224) | (42,224) | |||||||||||||||||||
Net contributions from (distributions to) Anadarko of other assets | [1] | (451) | [5] | 130 | (581) | |||||||||||||||||
Elimination of net deferred tax liabilities | [1] | 129,229 | 129,229 | |||||||||||||||||||
Other | [1] | 1,153 | 888 | 265 | ||||||||||||||||||
Balance at Dec. 31, 2016 | [1] | 4,872,656 | 761,890 | 1,048,143 | 3,062,623 | |||||||||||||||||
Increase (Decrease) in Partners' Capital [Roll Forward] | ||||||||||||||||||||||
Net income (loss) | [1] | 737,385 | 164,183 | 376,607 | 196,595 | |||||||||||||||||
Above-market component of swap agreements with Anadarko | [1],[2] | 58,551 | 58,551 | |||||||||||||||||||
WES equity transactions, net | [1],[3] | (183) | 6,615 | (6,798) | ||||||||||||||||||
Distributions to noncontrolling interest owners | [1] | (355,623) | (13,569) | (355,623) | (13,569) | |||||||||||||||||
Distributions to WGP unitholders | [1] | (441,967) | (441,967) | |||||||||||||||||||
Acquisitions from affiliates | [1] | 0 | (1,263) | 1,263 | ||||||||||||||||||
Revision to Deferred purchase price obligation – Anadarko | [1],[4] | 4,165 | 4,165 | |||||||||||||||||||
Contributions of equity-based compensation to WES by Anadarko | [1] | 4,587 | 4,587 | |||||||||||||||||||
Net pre-acquisition contributions from (distributions to) Anadarko | [1] | 126,866 | 126,866 | |||||||||||||||||||
Net contributions from (distributions to) Anadarko of other assets | [1] | 3,189 | [5] | 3,189 | ||||||||||||||||||
Elimination of net deferred tax liabilities | [1] | (1,505) | (1,505) | |||||||||||||||||||
Other | [1] | 498 | (28) | 526 | ||||||||||||||||||
Balance at Dec. 31, 2017 | [1] | 4,995,050 | 1,050,171 | 1,061,125 | 2,883,754 | |||||||||||||||||
Increase (Decrease) in Partners' Capital [Roll Forward] | ||||||||||||||||||||||
Net income (loss) | [1] | 630,654 | 182,142 | 369,429 | 79,083 | |||||||||||||||||
Above-market component of swap agreements with Anadarko | [1],[2] | 51,618 | 51,618 | |||||||||||||||||||
WES equity transactions, net | [1],[3] | 0 | (19,577) | 19,577 | ||||||||||||||||||
Distributions to noncontrolling interest owners | [1] | $ (386,326) | $ (13,529) | $ (386,326) | $ (13,529) | |||||||||||||||||
Distributions to WGP unitholders | [1] | (502,457) | (502,457) | |||||||||||||||||||
Contributions of equity-based compensation to WES by Anadarko | [1] | 5,741 | 5,741 | |||||||||||||||||||
Net pre-acquisition contributions from (distributions to) Anadarko | [1] | 97,755 | 97,755 | |||||||||||||||||||
Net contributions from (distributions to) Anadarko of other assets | [1] | 58,835 | [5] | 58,835 | ||||||||||||||||||
Elimination of net deferred tax liabilities | [1] | (1,514) | (1,514) | |||||||||||||||||||
Other | [1] | 606 | 209 | 397 | ||||||||||||||||||
Balance at Dec. 31, 2018 | [1] | 4,892,683 | 1,388,018 | 951,888 | 2,552,777 | |||||||||||||||||
Increase (Decrease) in Partners' Capital [Roll Forward] | ||||||||||||||||||||||
Cumulative effect of accounting change | [1],[6] | $ (43,750) | $ 629 | $ (14,200) | $ (30,179) | |||||||||||||||||
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