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Selected Quarterly Financial Data (Tables) | 12 Months Ended
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Sep. 30, 2020
Quarterly Financial Information Disclosure [Abstract] |
Selected Quarterly Financial Data |
|  | Three Months Ended |  |  |  |  |
|  | Dec. 31, |  |  | Mar. 31, |  |  | Jun. 30, |  |  | Sep. 30, |  |  |  |  |
(in thousands - except per unit data) |  | 2019 |  |  | 2020 |  |  | 2020 |  |  | 2020 |  |  | Total |
Sales |  | $ | 508,945 |  |  | $ | 543,063 |  |  | $ | 232,155 |  |  | $ | 183,295 |  |  | $ | 1,467,458 |
Gross profit for product, installation and service |  |  | 147,603 |  |  |  | 196,440 |  |  |  | 84,159 |  |  |  | 46,818 |  |  |  | 475,020 |
Operating income (loss) |  |  | 42,451 |  |  |  | 86,117 |  |  |  | 498 |  |  |  | (36,098 | ) |  |  | 92,968 |
Income (loss) before income taxes |  |  | 39,537 |  |  |  | 83,108 |  |  |  | (2,051 | ) |  |  | (44,051 | ) |  |  | 76,543 |
Net income (loss) |  |  | 27,755 |  |  |  | 58,408 |  |  |  | (46 | ) |  |  | (30,199 | ) |  |  | 55,918 |
Limited Partner interest in net income (loss) |  |  | 27,563 |  |  |  | 57,999 |  |  |  | (45 | ) |  |  | (29,976 | ) |  |  | 55,541 |
Net income (loss) per Limited Partner unit: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic and diluted (a) |  | $ | 0.49 |  |  | $ | 1.03 |  |  | $ | — |  |  | $ | (0.68 | ) |  | $ | 1.07 |
|  | Three Months Ended |  |  |  |  |
|  | Dec. 31, |  |  | Mar. 31, |  |  | Jun. 30, |  |  | Sep. 30, |  |  |  |  |
(in thousands - except per unit data) |  | 2018 |  |  | 2019 |  |  | 2019 |  |  | 2019 |  |  | Total |
Sales |  | $ | 535,027 |  |  | $ | 699,582 |  |  | $ | 283,376 |  |  | $ | 235,887 |  |  | $ | 1,753,872 |
Gross profit for product, installation and service |  |  | 154,484 |  |  |  | 218,549 |  |  |  | 66,191 |  |  |  | 48,482 |  |  |  | 487,706 |
Operating income (loss) |  |  | 6,063 |  |  |  | 105,002 |  |  |  | (29,933 | ) |  |  | (43,782 | ) |  |  | 37,350 |
Income (loss) before income taxes |  |  | 3,288 |  |  |  | 101,564 |  |  |  | (33,153 | ) |  |  | (46,545 | ) |  |  | 25,154 |
Net income (loss) |  |  | 2,315 |  |  |  | 72,325 |  |  |  | (23,098 | ) |  |  | (33,905 | ) |  |  | 17,637 |
Limited Partner interest in net income (loss) |  |  | 2,300 |  |  |  | 71,871 |  |  |  | (22,948 | ) |  |  | (33,681 | ) |  |  | 17,542 |
Net income (loss) per Limited Partner unit: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic and diluted (a) |  | $ | 0.04 |  |  | $ | 1.15 |  |  | $ | (0.46 | ) |  | $ | (0.69 | ) |  | $ | 0.35 |
(a) | The sum of the quarters do not add-up to the total due to the weighting of Limited Partner Units outstanding, rounding or the theoretical effects of FASB ASC 260-10-45-60 to Master Limited Partners earnings per unit.

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- References No definition available. + Details
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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121640914&loc=d3e1280-108306 + Details
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