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Selected Quarterly Financial Data (Tables) | 12 Months Ended
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Sep. 30, 2013
Nature of Partnerships Business |
|  | Three Months Ended |  |  |  |
(in thousands - except per unit data) |  | Dec. 31, 2012 |  |  | Mar. 31, 2013 |  |  | Jun. 30, 2013 |  |  | Sep. 30, 2013 |  |  | Total |
Sales |  | $ | 516,525 |  |  | $ | 785,139 |  |  | $ | 262,524 |  |  | $ | 177,608 |  |  | $ | 1,741,796 |
Gross profit for product, installation and service |  |  | 102,691 |  |  |  | 162,011 |  |  |  | 54,907 |  |  |  | 33,519 |  |  |  | 353,128 |
Operating income (loss) |  |  | 18,577 |  |  |  | 75,229 |  |  |  | (8,001 | ) |  |  | (19,800 | ) |  |  | 66,005 |
Income (loss) before income taxes |  |  | 14,669 |  |  |  | 70,796 |  |  |  | (11,952 | ) |  |  | (23,686 | ) |  |  | 49,827 |
Net income (loss) |  |  | 9,752 |  |  |  | 41,679 |  |  |  | (7,588 | ) |  |  | (13,937 | ) |  |  | 29,906 |
Limited Partner interest in net income (loss) |  |  | 9,699 |  |  |  | 41,454 |  |  |  | (7,547 | ) |  |  | (13,859 | ) |  |  | 29,747 |
Net income (loss) per Limited Partner unit: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic and diluted (a) |  | $ | 0.15 |  |  | $ | 0.58 |  |  | $ | (0.13 | ) |  | $ | (0.24 | ) |  | $ | 0.47 |
|  | Three Months Ended |  |  |  |
(in thousands - except per unit data) |  | Dec. 31, 2011 |  |  | Mar. 31, 2012 |  |  | Jun. 30, 2012 |  |  | Sep. 30, 2012 |  |  | Total |
Sales |  | $ | 461,474 |  |  | $ | 629,592 |  |  | $ | 232,476 |  |  | $ | 174,046 |  |  | $ | 1,497,588 |
Gross profit for product, installation and service |  |  | 92,450 |  |  |  | 125,994 |  |  |  | 46,550 |  |  |  | 32,783 |  |  |  | 297,777 |
Operating income (loss) |  |  | 9,293 |  |  |  | 74,077 |  |  |  | (18,525 | ) |  |  | (6,586 | ) |  |  | 58,259 |
Income (loss) before income taxes |  |  | 5,583 |  |  |  | 69,873 |  |  |  | (22,434 | ) |  |  | (10,457 | ) |  |  | 42,565 |
Net income (loss) |  |  | 2,931 |  |  |  | 40,482 |  |  |  | (11,789 | ) |  |  | (5,635 | ) |  |  | 25,989 |
Limited Partner interest in net income (loss) |  |  | 2,916 |  |  |  | 40,269 |  |  |  | (11,727 | ) |  |  | (5,605 | ) |  |  | 25,853 |
Net income (loss) per Limited Partner unit: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic and diluted (a) |  | $ | 0.05 |  |  | $ | 0.55 |  |  | $ | (0.19 | ) |  | $ | (0.09 | ) |  | $ | 0.40 |

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- Definition Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=25249566&loc=d3e1280-108306 + Details
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