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Earnings Per Share (Tables) | 6 Months Ended
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Mar. 31, 2018
Earnings Per Share [Abstract] |
Reconciliation of Amounts Utilized in Computation of Basic and Diluted Earnings Per Share | The following is a reconciliation of the amounts utilized in the computation of basic and diluted earnings per share for the three and six months ended March 31, 2018 and April 1, 2017 (in thousands, except per share amounts):
|  | Three Months Ended |  | Six Months Ended
|  | March 31, 2018 |  | April 1, 2017 |  | March 31, 2018 |  | April 1, 2017
Net income (loss) |  | $ | 12,290 |  |  | $ | 29,295 |  |  | $ | (86,203 | ) |  | $ | 57,474 |
Basic weighted average common shares outstanding |  | 33,538 |  |  | 33,703 |  |  | 33,552 |  |  | 33,619 |
Dilutive effect of share-based awards outstanding |  | 849 |  |  | 999 |  |  | — |  |  | 1,012 |
Diluted weighted average shares outstanding |  | 34,387 |  |  | 34,702 |  |  | 33,552 |  |  | 34,631 |
Earnings (loss) per share: |  |  |  |  |  |  |  |
Basic |  | $ | 0.37 |  |  | $ | 0.87 |  |  | $ | (2.57 | ) |  | $ | 1.71 |
Diluted |  | $ | 0.36 |  |  | $ | 0.84 |  |  | $ | (2.57 | ) |  | $ | 1.66 |

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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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