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Partners' Capital and Distributions - Exchange Rights and Shares Activity (Details) - shares | 6 Months Ended
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Jun. 30, 2017 | Jun. 30, 2016
Class A Shares |  |
Activity for Class A shares and Class B shares |  |
Balance, beginning of period (shares) | 101,206,526 | 86,099,037
Exchange Right exercises (shares) | 2,172,236 | 14,169,317
Sales of Class A shares (shares) | 50,086,326 |
Other (shares) | 7,810 |
Issuance of Class A shares under LTIP (shares) |  | 7,811
Balance, end of period (shares) | 153,472,898 | 100,276,165
Class B Shares |  |
Activity for Class A shares and Class B shares |  |
Balance, beginning of period (shares) | 138,043,486 | 141,485,588
Conversion of AAP Management Units (shares) | 1,557,860 | 6,742,383
Exchange Right exercises (shares) | (2,172,236) | (14,169,317)
Redemption Right exercises (shares) | (3,486,333) |
Balance, end of period (shares) | 133,942,777 | 134,058,654
Class C Shares |  |
Activity for Class A shares and Class B shares |  |
Balance, beginning of period (shares) | 491,910,863 |
Redemption Right exercises (shares) | 3,486,333 |
Sales of common units by a subsidiary (shares) | 4,033,567 |
Issuance of common units by a subsidiary for acquisition of interest in Advantage Joint Venture (Note 6) (shares) | 1,252,269 |
Issuance of Series A preferred units by a subsidiary (shares) | 2,601,300 |
Other (shares) | 122,344 |
Balance, end of period (shares) | 503,406,676 |

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- Definition Changes in the number of units outstanding included in the statement of changes in partners' capital which are not separately disclosed or provided for elsewhere in the taxonomy. + References No definition available. + Details
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- Definition Change in the number of units for each class of partners' capital accounts during the year due to acquisitions. Partners include general, limited and preferred partners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=66023778&loc=d3e9334-128500 Reference 3: 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 30 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=66023778&loc=d3e9337-128500 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=66023778&loc=d3e9298-128500 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 05 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=66006417&loc=d3e8580-128490 + Details
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