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Stock-Based Compensation Plans - Narrative (Details) | 12 Months Ended |
--- | --- | ---
Dec. 28, 2019 USD ($) period plan $ / shares shares | Dec. 29, 2018 USD ($) $ / shares shares | Dec. 30, 2017 USD ($) $ / shares | May 31, 2012 shares
Class of Stock [Line Items] |  |  |  |
Number of equity incentive plans | plan | 2 |  |  |
Contractual terms of options granted (do not exceed) | 10 years |  |  |
Compensation expense | $ 18,899,000 | $ 13,646,000 | $ 12,543,000 |
Plan adjustment ratio | 2.2 |  |  |
Number of outstanding option (in shares) | shares | 3,332,000 | 6,616,000 |  |
Total unrecognized compensation cost related to unvested employee and director stock options | $ 3,200,000 |  |  |
Total intrinsic value of options exercised | 17,800,000 | $ 6,500,000 | 2,200,000 |
Total fair value of options and RSU's vested and expensed | $ 18,400,000 | $ 13,000,000 | $ 12,500,000 |
Grant date weighted average fair values based on fair value assumptions, options (in dollars per share) | $ / shares |  | $ 2.73 | $ 2.02 |
Grant date weighted average fair values based on fair assumptions, non-options (in dollars per share) | $ / shares | $ 1.69 | $ 1.50 |  |
Chief Executive Officer |  |  |  |
Class of Stock [Line Items] |  |  |  |
Compensation expense |  | $ 1,400,000 |  |
Executive Officer |  |  |  |
Class of Stock [Line Items] |  |  |  |
Compensation expense | $ 5,700,000 |  |  |
Minimum |  |  |  |
Class of Stock [Line Items] |  |  |  |
Contractual terms of options granted (do not exceed) | 2 years |  |  |
Maximum |  |  |  |
Class of Stock [Line Items] |  |  |  |
Contractual terms of options granted (do not exceed) | 3 years |  |  |
Employee and Director Stock Options |  |  |  |
Class of Stock [Line Items] |  |  |  |
Award vesting period | 4 years |  |  |
Weighted average period for recognition | 1 year 6 months |  |  |
Restricted Stock Units (RSUs) |  |  |  |
Class of Stock [Line Items] |  |  |  |
Award vesting period | 4 years |  |  |
Grant date weighted average fair values based on fair assumptions, non-options (in dollars per share) | $ / shares | $ 16.23 |  |  |
Unrecognized compensation expense related to unvested RSU's | $ 51,900,000 |  |  |
Restricted Stock Units (RSUs) | Executive Officer |  |  |  |
Class of Stock [Line Items] |  |  |  |
Compensation expense |  | $ 900,000 | $ 500,000 |
Performance Shares |  |  |  |
Class of Stock [Line Items] |  |  |  |
Number of outstanding option (in shares) | shares | 0 | 0 |  |
Performance Shares | Executive Officer |  |  |  |
Class of Stock [Line Items] |  |  |  |
Award vesting period |  |  | 2 years |
Award vesting comparison period |  |  | 2 years |
Performance Shares | President and Chief Executive Officer |  |  |  |
Class of Stock [Line Items] |  |  |  |
Award vesting period | 3 years |  |  |
Number of consecutive trailing four-quarter periods for measurement | period | 2 |  |  |
Performance Shares | Minimum |  |  |  |
Class of Stock [Line Items] |  |  |  |
Award vesting percentage | 0.00% |  |  |
Performance Shares | Minimum | Executive Officer |  |  |  |
Class of Stock [Line Items] |  |  |  |
Award vesting percentage |  |  | 0.00% |
Performance Shares | Maximum |  |  |  |
Class of Stock [Line Items] |  |  |  |
Award vesting percentage | 250.00% |  |  |
Performance Shares | Maximum | Executive Officer |  |  |  |
Class of Stock [Line Items] |  |  |  |
Award vesting percentage |  |  | 200.00% |
Performance Shares | TSR Relative To PHLX Semiconductor Sector Index 50th Percentile Achievement | President and Chief Executive Officer |  |  |  |
Class of Stock [Line Items] |  |  |  |
Award vesting percentage | 100.00% |  |  |
Performance Shares | TSR Relative To PHLX Semiconductor Sector Index 75th Percentile Achievement | President and Chief Executive Officer |  |  |  |
Class of Stock [Line Items] |  |  |  |
Vesting multiplier | 250.00% |  |  |
Performance Shares | TSR Relative To PHLX Semiconductor Sector Index 75th Percentile Achievement | Corporate Vice President of Research and Development |  |  |  |
Class of Stock [Line Items] |  |  |  |
Vesting multiplier | 200.00% |  |  |
Performance Shares | TSR Below 25th Percentile | President and Chief Executive Officer |  |  |  |
Class of Stock [Line Items] |  |  |  |
Award vesting percentage | 0.00% |  | 0.00% |
2012 ESPP |  |  |  |
Class of Stock [Line Items] |  |  |  |
Number of shares authorized | shares |  |  |  | 3,000,000
Percentage of employee's compensation maximum for employee share purchases | 10.00% |  |  |
Purchase price of shares as percentage of fair market value | 85.00% |  |  |
Compensation expense | $ 500,000 | $ 600,000 | $ 0 |
Number of shares available for future awards | shares | 1,400,000 |  |  |
2013 Incentive Plan, Inducement Plan and the 2011 Non-Employee Director Equity Incentive Plan |  |  |  |
Class of Stock [Line Items] |  |  |  |
Number of shares available for future awards | shares | 9,000,000 |  |  |
2013 Incentive Plan |  |  |  |
Class of Stock [Line Items] |  |  |  |
Number of shares transfered out of plan | shares | 2,900,000 |  |  |

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