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Net Income Per Share Attributable to Lear (Tables) | 3 Months Ended
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Mar. 29, 2014
Earnings Per Share [Abstract] |
Summary of Information Used to Compute Basic and Diluted Net Income (Loss) Per Share | A summary of information used to compute basic and diluted net income per share attributable to Lear is shown below (in millions, except share and per share data):
|  | Three Months Ended |
|  | March 29, 2014 |  |  | March 30, 2013 |
Net income attributable to Lear |  | $ | 122.0 |  |  | $ | 108.5 |
Average common shares outstanding |  |  | 81,075,811 |  |  |  | 94,816,752 |
Dilutive effect of common stock equivalents |  |  | 1,685,786 |  |  |  | 1,054,352 |
Average diluted shares outstanding |  |  | 82,761,597 |  |  |  | 95,871,104 |
Basic net income per share attributable to Lear |  | $ | 1.50 |  |  | $ | 1.14 |
Diluted net income per share attributable to Lear |  | $ | 1.47 |  |  | $ | 1.13 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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