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Earnings Per Share Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2016 | Jan. 02, 2016 | Jan. 03, 2015 | Aug. 08, 2016 | Feb. 11, 2014
Earnings Per Share [Line Items] |  |  |  |  |
Anti-dilutive stock options | 3,100,328 | 2,264,711 | 1,116,576 |  |
Common stock, shares authorized | 320,000,000 | 320,000,000 |  |  |
Preferred stock, shares authorized | 2,000,000 |  |  |  |
Preferred stock, par or stated value Per Share | $ 1 |  |  |  |
Purchases of shares under employee stock plans | $ (4.9) | $ (7.7) | $ (10.5) |  |
Common stock repurchase program, authorized amount |  |  |  | $ 300.0 | $ 200.0
Purchase of common stock for treasury | $ (61.9) | (92.6) |  |  |
Series A junior participating preferred stock [Member] |  |  |  |  |
Earnings Per Share [Line Items] |  |  |  |  |
Preferred stock, shares authorized | 150,000 |  |  |  |
Series B junior participating preferred stock [Member] |  |  |  |  |
Earnings Per Share [Line Items] |  |  |  |  |
Preferred stock, shares authorized | 500,000 |  |  |  |
Treasury Stock [Member] |  |  |  |  |
Earnings Per Share [Line Items] |  |  |  |  |
Purchase of common stock for treasury | $ (61.9) | $ (92.6) | $ 0.0 |  |

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Antidilution -URI http://asc.fasb.org/extlink&oid=6505113 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Diluted Earnings Per Share -URI http://asc.fasb.org/extlink&oid=6510752 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Contingent Stock Agreement -URI http://asc.fasb.org/extlink&oid=6508534 Reference 4: 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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