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EQT Midstream Partners, LP (Details) - EQM - Subsequent Event - USD ($) $ / shares in Units, $ in Millions | Apr. 27, 2017 | Apr. 25, 2017
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Subsidiary or equity method investee |  |
Cash distribution declared | $ 51.9 |
General Partner |  |
Subsidiary or equity method investee |  |
Cash distribution declared (in dollars per share) |  | $ 0.89
Common unit, outstanding (in shares) | 80,581,758 |
Cash distribution declared | $ 1.8 |
Cash distribution declared related to IDRs | 30.7 |
Limited Partner |  |
Subsidiary or equity method investee |  |
Cash distribution declared | $ 19.4 |

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