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Partners' Capital and Distributions - Exchange Rights and Shares Activity (Details) - shares | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Class A Shares |  |
Activity for Class A shares, Class B shares and Class C shares |  |
Balance, beginning of period (shares) | 194,051,436 | 182,138,592
Exchange Right exercises (shares) | 46,879 | 2,101,487
Balance, end of period (shares) | 194,098,315 | 184,240,079
Class B Shares |  |
Activity for Class A shares, Class B shares and Class C shares |  |
Balance, beginning of period (shares) | 50,640,192 | 65,785,702
Conversion of AAP Management Units (shares) | 414,608 | 559,768
Exchange Right exercises (shares) | (46,879) | (2,101,487)
Redemption Right exercises (shares) | (229,931) | (1,206,599)
Balance, end of period (shares) | 50,777,990 | 63,037,384
Class C Shares |  |
Activity for Class A shares, Class B shares and Class C shares |  |
Balance, beginning of period (shares) | 547,717,762 | 549,538,139
Redemption Right exercises (shares) | 229,931 | 1,206,599
Repurchase of common units by a subsidiary under Common Equity Repurchase Program (shares) | (350,000) |
Other (shares) | 25,431 | 24,431
Balance, end of period (shares) | 547,623,124 | 550,769,169

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- Definition Represents the number of shares issued (exchanged) in connection with Exchange Right exercises. + References No definition available. + Details
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- Definition Limited Partners Capital Account, Shares Issued (Redeemed) in Redemption Right Exercises + References No definition available. + Details
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- Definition Limited Partners Capital Shares Issued From Conversion + References No definition available. + Details
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- Definition Partners' Capital Account, Shares, Cancellation Of Shares + References No definition available. + Details
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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 A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition The number of limited partner units outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB Topic 4.F) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187171-122770 + Details
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