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Earnings Per Limited Partner Unit - Net Income Allocation and Per Unit Data (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Basic and Diluted Earnings Per Limited Partner: |  |  |  |  |
Net income (loss) |  | $ (46) | $ (23,098) | $ 86,117 | $ 51,542
Less General Partner’s interest in net income (loss) |  | (1) | (150) | 600 | 319
Net income (loss) available to limited partners |  | (45) | (22,948) | 85,517 | 51,223
Less dilutive impact of theoretical distribution of earnings under FASB ASC 260-10-45-60 |  |  |  | 13,616 | 6,740
Limited Partner’s interest in net income (loss) under FASB ASC 260-10-45-60 |  | $ (45) | $ (22,948) | $ 71,901 | $ 44,483
Per unit data: |  |  |  |  |
Basic and diluted net income (loss) available to limited partners |  |  | $ (0.46) | $ 1.85 | $ 1.00
Less dilutive impact of theoretical distribution of earnings under FASB ASC 260-10-45-60 |  |  |  | 0.30 | 0.14
Limited Partner’s interest in net income (loss) under FASB ASC 260-10-45-60 | [1] |  | $ (0.46) | $ 1.55 | $ 0.86
Weighted average number of Limited Partner units outstanding |  | 45,246 | 49,943 | 46,253 | 51,431
[1] | See Note 16 - Earnings Per Limited Partner Unit.

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