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Partners' Capital and Distributions - Activity for Series A Preferred Units and Common Units (Details) - shares |  | 12 Months Ended | 22 Months Ended
--- | --- | --- | ---
Jan. 28, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Nov. 14, 2016
Partners Capital and Distributions |  |  |  |  |
Limited partner interest |  |  |  |  | 98.00%
General partner ownership interest |  |  |  |  | 2.00%
Series A Preferred Units |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |
Balance, beginning of period (in units) |  | 64,388,853 |  |  |
Sale of Series A preferred units (in units) | 61,000,000 |  |  |  |
Balance, end of period (in units) |  | 69,696,542 | 64,388,853 |  |
Series B Preferred Units |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |
Balance, end of period (in units) |  | 800,000 |  |  |
Common Units |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |
Balance, beginning of period (in units) |  | 669,194,419 |  |  |
Sale of common units (in units) |  | 54,119,893 |  | 22,133,904 |
Balance, end of period (in units) |  | 725,189,138 | 669,194,419 |  |
Partners’ Capital Excluding Noncontrolling Interests | Limited Partners | Series A Preferred Units |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |
Balance, beginning of period (in units) |  | 64,388,853 | 0 | 0 | 0
Sale of Series A preferred units (in units) |  |  | 61,030,127 |  |
Issuances of Series A preferred units in connection with in-kind distributions (in units) |  | 5,307,689 | 3,358,726 |  |
Balance, end of period (in units) |  | 69,696,542 | 64,388,853 | 0 |
Partners’ Capital Excluding Noncontrolling Interests | Limited Partners | Series B Preferred Units |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |
Balance, beginning of period (in units) |  | 0 | 0 | 0 | 0
Sale of Series B preferred units (in units) |  | 800,000 |  |  |
Balance, end of period (in units) |  | 800,000 | 0 | 0 |
Partners’ Capital Excluding Noncontrolling Interests | Limited Partners | Common Units |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |
Balance, beginning of period (in units) |  | 669,194,419 | 397,727,624 | 375,107,793 | 375,107,793
Sale of common units (in units) |  | 54,119,893 | 26,278,288 | 22,133,904 |
Issuance of common units in connection with acquisition of interest in Advantage Joint Venture (Note 6) (in units) |  | 1,252,269 |  |  |
Issuance of common units under LTIP (in units) |  | 622,557 | 480,581 | 485,927 |
Issuance of common units in connection with Simplification Transactions (in units) |  |  | 244,707,926 |  |
Balance, end of period (in units) |  | 725,189,138 | 669,194,419 | 397,727,624 |

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- Definition Number of units distributed for payment of a unit distribution to unit-holder of limited partnership (LP). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
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- Definition Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
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