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Revenue Recognition - Schedule of Impact of Adoption on Condensed Consolidated Statement of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Sales: |  |  |  |  |
Total sales |  | $ 283,376 | $ 327,354 | $ 1,517,985 | $ 1,448,219
Cost and expenses: |  |  |  |  |
Delivery and branch expenses |  | 82,669 | 83,312 | 296,026 | 281,121
Operating income (loss) |  | (29,933) | (8,817) | 81,132 | 107,722
Income (loss) before income taxes |  | (33,153) | (11,421) | 71,699 | 100,032
Income tax expense (benefit) |  | (10,055) | (3,416) | 20,157 | 23,077
Net income (loss) |  | (23,098) | (8,005) | 51,542 | 76,955
General Partner’s interest in net income (loss) |  | (150) | (49) | 319 | 445
Limited Partners’ interest in net income (loss) |  | $ (22,948) | $ (7,956) | $ 51,223 | $ 76,510
Basic and diluted income (loss) per Limited Partner Unit | [1] | $ (0.46) | $ (0.15) | $ 0.86 | $ 1.18
Balances Without Adoption of ASC 606 | ASU 2014-09 |  |  |  |  |
Sales: |  |  |  |  |
Total sales |  | $ 283,224 |  | $ 1,524,053 |
Cost and expenses: |  |  |  |  |
Delivery and branch expenses |  | 82,432 |  | 298,804 |
Operating income (loss) |  | (29,848) |  | 84,422 |
Income (loss) before income taxes |  | (33,068) |  | 74,989 |
Income tax expense (benefit) |  | (10,053) |  | 21,082 |
Net income (loss) |  | (23,015) |  | 53,907 |
General Partner’s interest in net income (loss) |  | (149) |  | 334 |
Limited Partners’ interest in net income (loss) |  | $ (22,866) |  | $ 53,573 |
Basic and diluted income (loss) per Limited Partner Unit |  | $ (0.46) |  | $ 0.90 |
Effect of Change Higher/(Lower) | ASU 2014-09 |  |  |  |  |
Sales: |  |  |  |  |
Total sales |  | $ 152 |  | $ (6,068) |
Cost and expenses: |  |  |  |  |
Delivery and branch expenses |  | 237 |  | (2,778) |
Operating income (loss) |  | (85) |  | (3,290) |
Income (loss) before income taxes |  | (85) |  | (3,290) |
Income tax expense (benefit) |  | (2) |  | (925) |
Net income (loss) |  | (83) |  | (2,365) |
General Partner’s interest in net income (loss) |  | (1) |  | (15) |
Limited Partners’ interest in net income (loss) |  | (82) |  | $ (2,350) |
Basic and diluted income (loss) per Limited Partner Unit |  |  |  | $ (0.04) |
Product |  |  |  |  |
Sales: |  |  |  |  |
Total sales |  | 210,657 | $ 256,447 | $ 1,306,764 | $ 1,246,143
Product | Balances Without Adoption of ASC 606 | ASU 2014-09 |  |  |  |  |
Sales: |  |  |  |  |
Total sales |  | 212,249 |  | 1,317,809 |
Product | Effect of Change Higher/(Lower) | ASU 2014-09 |  |  |  |  |
Sales: |  |  |  |  |
Total sales |  | (1,592) |  | (11,045) |
Installations and services |  |  |  |  |
Sales: |  |  |  |  |
Total sales |  | 72,719 | $ 70,907 | 211,221 | $ 202,076
Installations and services | Balances Without Adoption of ASC 606 | ASU 2014-09 |  |  |  |  |
Sales: |  |  |  |  |
Total sales |  | 70,975 |  | 206,244 |
Installations and services | Effect of Change Higher/(Lower) | ASU 2014-09 |  |  |  |  |
Sales: |  |  |  |  |
Total sales |  | $ 1,744 |  | $ 4,977 |
[1] | See Note 15 - Earnings Per Limited Partner Unit.

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