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Net Income Per Share Attributable to Lear (Tables) | 3 Months Ended
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Apr. 03, 2021
Earnings Per Share [Abstract] |
Summary of Information Used to Compute Basic and Diluted Net Income Per Share | A summary of information used to compute basic and diluted net income per share available to Lear common stockholders is shown below (in millions, except share and per share data):
| Three Months Ended |  |
| April 3, 2021 |  | April 4, 2020 |  |  |  |
Net income available to Lear | $ | 203.7 |  |  | $ | 76.4 |  |  |  |  |
Average common shares outstanding | 60,312,573 |  |  | 60,509,450 |  |  |  |  |
Dilutive effect of common stock equivalents | 248,286 |  |  | 169,140 |  |  |  |  |
Average diluted shares outstanding | 60,560,859 |  |  | 60,678,590 |  |  |  |  |
Basic net income per share available to Lear common stockholders | $ | 3.38 |  |  | $ | 1.26 |  |  |  |  |
Diluted net income per share available to Lear common stockholders | $ | 3.36 |  |  | $ | 1.26 |  |  |  |  |

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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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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