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Stock-Based Compensation (Non-Vested Activity - Tables - Stock Options, RSUs, PSUs) (Details) - $ / shares | 12 Months Ended
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Dec. 30, 2017 | Dec. 31, 2016 | Jan. 02, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward] |  |  |
Non-vested at beginning of year | 2,843,676 |  |
Grants | 1,120,406 |  |
Vested | (756,075) |  |
Forfeited or expired | (1,058,786) |  |
Non-vested at end of year | 2,149,221 | 2,843,676 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] |  |  |
Non-vested at beginning of year | $ 3.06 |  |
Grants | 4.12 |  |
Vested | 3.19 |  |
Forfeited or expired | 3.05 |  |
Non-vested at end of year | 3.57 | $ 3.06 |
Employee Stock Option [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] |  |  |
Grants | $ 4.12 | $ 1.86 | $ 4.37
Restricted Stock Units (RSUs) [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward] |  |  |
Non-vested at beginning of year | 175,860 |  |
Grants | 762,710 |  |
Vested | (95,724) |  |
Forfeited or expired | (67,490) |  |
Non-vested at end of year | 775,356 | 175,860 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] |  |  |
Non-vested at beginning of year | $ 6.1 |  |
Grants | 9.18 |  |
Vested | 6.31 |  |
Forfeited or expired | 9.5 |  |
Non-vested at end of year | $ 8.85 | $ 6.1 |
Performance Share Units (PSUs) [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward] |  |  |
Non-vested at beginning of year | 454,425 |  |
Grants | 1,560,535 |  |
Vested | 0 |  |
Forfeited or expired | (495,208) |  |
Non-vested at end of year | 1,519,752 | 454,425 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] |  |  |
Non-vested at beginning of year | $ 6.75 |  |
Grants | 5.64 |  |
Vested | 0 |  |
Forfeited or expired | 6.7 |  |
Non-vested at end of year | $ 5.68 | $ 6.75 |

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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Number of non-vested options outstanding. + References No definition available. + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Weighted average grant-date fair value of non-vested options forfeited. + References No definition available. + Details
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