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Net Income Per Unit (Tables) | 12 Months Ended
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Dec. 31, 2021
Earnings Per Share [Abstract] |
Net Income Per Unit | The calculation of net income per unit is as follows (dollars in thousands, except units and per unit amounts):
| Year Ended December 31,
| 2021 |  | 2020 |  | 2019
Net income attributable to partners | $ | 164,822 |  |  | $ | 159,256 |  |  | $ | 96,749 |
Less: General partner's distribution (including IDRs) (1) | — |  |  | 18,618 |  |  | 33,492 |
Less: Limited partners' distribution | 164,484 |  |  | 127,070 |  |  | 83,873 |
Earning in excess (deficit) of distributions | $ | 338 |  |  | $ | 13,568 |  |  | $ | (20,616) |
General partner's earnings: |  |  |  |  |
Distributions (including IDRs) (1) | $ | — |  |  | $ | 18,618 |  |  | $ | 33,492 |
Allocation of earnings in excess (deficit) of distributions | — |  |  | 106 |  |  | (412) |
Total general partner's earnings | $ | — |  |  | $ | 18,724 |  |  | $ | 33,080 |
Limited partners' earnings on common units: |  |  |  |  |
Distributions | $ | 164,484 |  |  | $ | 127,070 |  |  | $ | 83,873 |
Allocation of earnings in excess (deficit) of distributions | 338 |  |  | 13,462 |  |  | (20,204) |
Total limited partners' earnings on common units | $ | 164,822 |  |  | $ | 140,532 |  |  | $ | 63,669 |
Weighted average limited partner units outstanding: |  |  |  |  |
Common units - basic | 43,447,739 |  |  | 33,594,284 |  |  | 24,413,294 |
Common units - diluted | 43,460,470 |  |  | 33,597,418 |  |  | 24,418,641 |
Net income per limited partner unit: |  |  |  |  |
Common - basic | $ | 3.79 |  |  | $ | 4.18 |  |  | $ | 2.61 |
Common - diluted (2) | $ | 3.79 |  |  | $ | 4.18 |  |  | $ | 2.61 |
(1) Prior to August 13, 2020, general partner distributions (including IDRs) consist of the 2% general partner interest and IDRs, which represent the right of the general partner to receive increasing percentages of quarterly distributions of available cash from operating surplus in excess of 0.43125 per unit per quarter. In connection with the IDR Restructuring Transaction on August 13, 2020, the IDRs were eliminated and the general partner interest became a non-economic general partner interest. See Note 12 for further discussion related to IDRs. (2) There were 4,458 and 5,201 outstanding common unit equivalents excluded from the diluted earnings per unit calculation during the years ended December 31, 2021 and 2020, respectively. There were no outstanding common unit equivalents excluded from the diluted earnings per unit calculation during the year ended December 31, 2019.

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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