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Note 10 Earnings Per Share (Tables) | 6 Months Ended
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Mar. 28, 2015
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
| Three Months Ended |  | Six Months Ended
| March 28, 2015 |  | March 29, 2014 |  | March 28, 2015 |  | March 29, 2014
| (In thousands, except per share data)
Numerator: |  |  |  |  |  |  |
Net income | $ | 14,748 |  |  | $ | 20,840 |  |  | $ | 37,404 |  |  | $ | 43,941 |
Denominator: |  |  |  |  |  |  |
Weighted average common shares outstanding | 82,977 |  |  | 82,728 |  |  | 82,762 |  |  | 83,247 |
Effect of dilutive stock options and restricted stock units | 3,920 |  |  | 3,416 |  |  | 4,035 |  |  | 3,476 |
Denominator for diluted earnings per share | 86,897 |  |  | 86,144 |  |  | 86,797 |  |  | 86,723 |
Net income per share: |  |  |  |  |  |  |
Basic | $ | 0.18 |  |  | $ | 0.25 |  |  | $ | 0.45 |  |  | $ | 0.53 |
Diluted | $ | 0.17 |  |  | $ | 0.24 |  |  | $ | 0.43 |  |  | $ | 0.51 |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] |
| Three Months Ended |  | Six Months Ended
| March 28, 2015 |  | March 29, 2014 |  | March 28, 2015 |  | March 29, 2014
| (In thousands)
Potentially dilutive securities: |  |  |  |  |
Employee stock options | 602 |  |  | 3,285 |  |  | 474 |  |  | 3,247 |
Restricted stock units | 245 |  |  | 3 |  |  | 159 |  |  | 1 |
Total | 847 |  |  | 3,288 |  |  | 633 |  |  | 3,248 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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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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