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Quarterly Financial Information (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2011
Quarterly Financial Information (Unaudited) [Abstract] |
Quarterly Financial Information (Unaudited) |
|  | First |  |  |  |  | Second |  |  | Third |  |  | Fourth |
(In thousands, except per share data) |  | Quarter |  |  |  |  | Quarter |  |  | Quarter |  |  | Quarter |
2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 687,681 |  |  |  |  | $ | 652,923 |  |  | $ | 585,809 |  |  | $ | 491,384 |
Gross profit (1) |  |  | 97,807 |  |  |  |  |  | 79,046 |  |  |  | 61,825 |  |  |  | 63,442 |
Consolidated net income |  |  | 40,542 |  |  | (2) |  |  | 22,731 |  |  |  | 10,741 |  |  |  | 13,072 |
Net income attributable to Mueller Industries, Inc. |  |  | 40,587 |  |  |  |  |  | 22,331 |  |  |  | 10,475 |  |  |  | 12,928 |
Basic earnings per share |  |  | 1.08 |  |  |  |  |  | 0.59 |  |  |  | 0.28 |  |  |  | 0.34 |
Diluted earnings per share |  |  | 1.07 |  |  |  |  |  | 0.59 |  |  |  | 0.27 |  |  |  | 0.34 |
Dividends per share |  |  | 0.10 |  |  |  |  |  | 0.10 |  |  |  | 0.10 |  |  |  | 0.10 |
2010 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 485,268 |  |  |  |  | $ | 540,388 |  |  | $ | 507,240 |  |  | $ | 526,901 |
Gross profit (1) |  |  | 72,220 |  |  |  |  |  | 73,743 |  |  |  | 69,643 |  |  |  | 69,380 |
Consolidated net income |  |  | 34,799 |  |  | (3) |  |  | 16,037 |  |  |  | 18,747 |  |  |  | 17,952 |
Net income attributable to Mueller Industries, Inc. |  |  | 33,958 |  |  |  |  |  | 15,558 |  |  |  | 18,909 |  |  |  | 17,746 |
Basic earnings per share |  |  | 0.90 |  |  |  |  |  | 0.41 |  |  |  | 0.50 |  |  |  | 0.47 |
Diluted earnings per share |  |  | 0.90 |  |  |  |  |  | 0.41 |  |  |  | 0.50 |  |  |  | 0.47 |
Dividends per share |  |  | 0.10 |  |  |  |  |  | 0.10 |  |  |  | 0.10 |  |  |  | 0.10 |
(1) Gross profit is net sales less cost of goods sold, which excludes depreciation and amortization. |
(2) First quarter of 2011 includes gain from litigation settlement of $6.8 million after tax. |
(3) First quarter of 2010 includes gain from insurance settlement of $23.3 million after tax.

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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 -Topic 270 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (a)-(j) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6952194&loc=d3e1280-108306 + Details
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