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Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 29, 2018 | Sep. 30, 2017 | Sep. 29, 2018 | Sep. 30, 2017
Summary of Significant Accounting Policies [Line Items] |  |  |  |
Financing Receivable, Significant Sales | $ 32,300 | $ 0 | $ 82,900 | $ 0
Financing Receivable, Significant Sales, Transaction Fees | $ 200 |  | 400 |
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent |  |  | $ 64,200 | $ 114,700
Minimum fiscal year period in days |  |  | 364 days |
Maximum fiscal year period in days |  |  | 371 days |
Fiscal quarter period in days | 91 days | 91 days |  |
Fiscal Year to Date in Days |  |  | 273 days | 273 days
Basic: |  |  |  |
Net income | $ (6,037) | $ 7,761 | $ 60,848 | $ 22,739
Shares (in shares) | 164,656,000 | 164,735,000 | 164,784,000 | 164,734,000
Per Share (in usd per share) | $ (0.04) | $ 0.05 | $ 0.37 | $ 0.14
Effect of dilutive securities: [Abstract] |  |  |  |
Add: Option shares in the money and dilutive effect of non-vested stock (in shares) | 0 | 4,759,000 | 1,690,000 | 3,645,000
Less: Pro forma treasury shares (in shares) | 0 | (2,313,000) | (700,000) | (1,751,000)
Diluted: |  |  |  |
Net Income | $ (6,037) | $ 7,761 | $ 60,848 | $ 22,739
Shares (in shares) | 164,656,000 | 167,181,000 | 165,774,000 | 166,628,000
Per Share (in usd per share) | $ (0.04) | $ 0.05 | $ 0.37 | $ 0.14
Stock Options [Member] |  |  |  |
Antidilutive Securities [Abstract] |  |  |  |
Antidilutive securities excluded from computation of earnings per share (in shares) | 3,774,610 | 212,525 | 2,773,030 | 723,052
Non Vested Stock [Member] |  |  |  |
Antidilutive Securities [Abstract] |  |  |  |
Antidilutive securities excluded from computation of earnings per share (in shares) | 2,258,646 | 437,897 | 1,448,719 | 650,758

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