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Per Share Data (Tables) | 3 Months Ended
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Apr. 03, 2021
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Loss Per Share | The following table sets forth the computation of basic and diluted loss per share data:
|  | Three Months Ended |
|  | April 3, |  |  | March 28, |
|  | 2021 |  |  | 2020 |
Numerator: |  |  |  |  |  |  |  |
Net loss attributable to WW International, Inc. |  | $ | (18,227 | ) |  | $ | (6,063 | )
Denominator: |  |  |  |  |  |  |  |
Weighted average shares of common stock outstanding |  |  | 69,084 |  |  |  | 67,436 |
Effect of dilutive common stock equivalents |  |  | — |  |  |  | — |
Weighted average diluted common shares outstanding |  |  | 69,084 |  |  |  | 67,436 |
Net loss per share attributable to WW International, Inc. |  |  |  |  |  |  |  |
Basic |  | $ | (0.26 | ) |  | $ | (0.09 | )
Diluted |  | $ | (0.26 | ) |  | $ | (0.09 | )

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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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