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Stockholders' Equity - Share-based Compensation, Performance Shares Award Unvested Activity (Details) - $ / shares shares in Thousands | 12 Months Ended
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Dec. 28, 2018 | Dec. 29, 2017 | Dec. 30, 2016
Schedule of Nonvested Options Activity [Line Items] |  |  |
Options, Granted, Shares | 826 |  |
Granted, Weighted Average Grant Date Fair Value | $ 11.95 | $ 5.42 | $ 3.77
Nonvested Stock Options |  |  |
Schedule of Nonvested Options Activity [Line Items] |  |  |
Options, Unvested at December 29, 2017 | 1,148 |  |
Options, Granted, Shares | 826 |  |
Options, Forfeited or expired, Shares | (35) |  |
Options, Vested, Shares | (679) |  |
Options, Unvested at December 28, 2018 | 1,260 | 1,148 |
Unvested at December 29, 2017, Weighted-Average Grant-Date Fair Value | $ 4.96 |  |
Granted, Weighted Average Grant Date Fair Value | 11.95 |  |
Forfeited or expired during the year, Weighted Average Grant Date Fair Value | 5.73 |  |
Vested during the year, Weighted Average Grant Date Fair Value | 4.90 |  |
Unvested at December 28, 2018, Weighted Average Grant Date Fair Value | $ 9.67 | $ 4.96 |

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- Definition Schedule of Nonvested Options Activity [Line Items] + References No definition available. + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=109197908&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 Number of non-vested options forfeited. + 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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- Definition Weighted average grant-date fair value of non-vested options outstanding. + References No definition available. + Details
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- Definition Number of options vested. + References No definition available. + Details
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- Definition Weighted average grant-date fair value of options vested. + References No definition available. + Details
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- Details
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