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Earnings Per Share and Shareholders' Equity (Tables) | 9 Months Ended
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Sep. 26, 2020
Earnings Per Share [Abstract] |
Schedule of Earnings per Share, Basic and Diluted | A reconciliation of the numerators and denominators used in the basic and diluted earnings per share ("EPS") calculation is as follows (in millions):
| Three Months Ended | Nine Months Ended
| September 26, 2020 |  | September 28, 2019 | September 26, 2020 |  | September 28, 2019
Numerator: |  |  |  |  |  |
Net income (loss) | $ | (154.6 | ) |  | $ | 92.2 |  | $ | 12.4 |  |  | $ | 165.1 |
Denominator: |  |  |  |  |  |
Weighted average shares outstanding for basic EPS | 136.5 |  |  | 136.0 |  | 136.3 |  |  | 136.0 |
Dilutive effect of share-based awards* | — |  |  | 0.8 |  | 1.2 |  |  | 0.4 |
Weighted average shares outstanding for diluted EPS | 136.5 |  |  | 136.8 |  | 137.5 |  |  | 136.4 |
Anti-dilutive share-based awards excluded from computation of diluted EPS* | — |  |  | 1.5 |  | 1.5 |  |  | 1.8 |
* In the period of a net loss, diluted shares equal basic shares.

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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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