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Transactions Related to the Partnership (Narratives) (Details) $ / shares in Units, $ in Thousands, hp in Millions |  |  |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended
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Oct. 20, 2017 USD ($) $ / shares | Aug. 15, 2017 $ / shares | May 16, 2017 $ / shares | Feb. 15, 2017 $ / shares | Nov. 17, 2016 $ / shares | Aug. 16, 2016 $ / shares | May 18, 2016 $ / shares | Mar. 01, 2016 USD ($) shares | Feb. 16, 2016 $ / shares | Aug. 31, 2017 USD ($) shares | Sep. 30, 2017 hp compressor_unit $ / shares | Sep. 30, 2016 $ / shares | Sep. 30, 2017 hp compressor_unit $ / shares shares | Sep. 30, 2016 $ / shares shares
Transactions related to the partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared and paid per common share (in dollars per share) | $ / shares |  | $ 0.1200 | $ 0.1200 | $ 0.1200 | $ 0.1200 | $ 0.0950 | $ 0.0950 |  | $ 0.1875 |  | $ 0.12 | $ 0.095 | $ 0.36 | $ 0.3775
March 2016 Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price | $ |  |  |  |  |  |  |  | $ 18,768 |  |  |  |  |  |
General Partner |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |
General partner units interest (as a percentage) |  |  |  |  |  |  |  |  |  |  | 2.00% |  | 2.00% |
Partners' capital account, units distributed in acquisition (units) | shares |  |  |  |  |  |  |  |  |  | 93,163 |  |  |  | 5,205
General Partner | March 2016 Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |
General partner units interest (as a percentage) |  |  |  |  |  |  |  | 2.00% |  |  |  |  |  |
Partners' capital account, units distributed in acquisition (units) | shares |  |  |  |  |  |  |  | 5,205 |  |  |  |  |  |
Limited Partner Units | March 2016 Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |
Partners' capital account, units distributed in acquisition (units) | shares |  |  |  |  |  |  |  | 257,000 |  |  |  |  |  |
Net proceeds from the sale of partnership units | $ |  |  |  |  |  |  |  | $ 1,800 |  |  |  |  |  |
Archrock GP LLC | Common Units [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued (shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  | 94,506 | 6,363
Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued (shares) | shares |  |  |  |  |  |  |  |  |  | 4,600,000 |  |  |  |
Proceeds from the issuance of common stock | $ |  |  |  |  |  |  |  |  |  | $ 60,300 |  |  |  |
Common Stock | Archrock GP LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from the issuance of common stock | $ |  |  |  |  |  |  |  |  |  | $ 1,300 |  |  |  |
Common Stock | Stock Options |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued (shares) | shares |  |  |  |  |  |  |  |  |  | 600,000 |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared and paid per common share (in dollars per share) | $ / shares | $ 0.2850 |  |  |  |  |  |  |  |  |  |  |  |  |
Authorized distributions to limited partnership, amount | $ | $ 8,700 |  |  |  |  |  |  |  |  |  |  |  |  |
Archrock GP LLC | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |
Authorized distributions to limited partnership, amount | $ | $ 20,500 |  |  |  |  |  |  |  |  |  |  |  |  |
Archrock Partners, L.P |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vie ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  | 43.00% |
Number of compressor units | compressor_unit |  |  |  |  |  |  |  |  |  |  | 6,046 |  | 6,046 |
Compressor units horsepower | hp |  |  |  |  |  |  |  |  |  |  | 3.3 |  | 3.3 |
Percentage of horsepower in fleet |  |  |  |  |  |  |  |  |  |  | 85.00% |  | 85.00% |

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