Stock-Based Compensation Plans - Additional Information (Details)		12 Months Ended
	Mar. 10, 2015 $ / shares shares	Dec. 29, 2018 USD ($) Period plan $ / shares shares	Dec. 30, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares	Jan. 02, 2016 USD ($)	May 31, 2012 shares
Class of Stock [Line Items]
Number of equity incentive plans | plan		4
Granted, Shares		843,000
Number of shares available for future awards		0
Plan adjustment ratio		2.2
Contractual terms of options granted (do not exceed)		10 years
Compensation expense | $		$ 13,646,000	$ 12,543,000	$ 16,213,000
Conversion ratio	1.09816
Number of outstanding option (in shares)		6,616,000	12,939,000
Total unrecognized compensation cost related to unvested employee and director stock options | $		$ 6,800,000
Total intrinsic value of options exercised | $		6,500,000	$ 2,200,000	3,300,000
Total fair value of options and RSU's vested and expensed | $		$ 13,000,000	$ 12,500,000	$ 15,600,000
Grant date weighted average fair values based on fair value assumptions, options (in dollars per share) | $ / shares		$ 2.73	$ 2.02	$ 2.14
Grant date weighted average fair values based on fair assumptions, non-options (in dollars per share) | $ / shares		$ 1.50		$ 1.82
Chief Executive Officer
Class of Stock [Line Items]
Compensation expense | $		$ 1,400,000
Executive Officer
Class of Stock [Line Items]
Compensation expense | $		$ 900,000	$ 500,000	$ 800,000
Maximum
Class of Stock [Line Items]
Contractual terms of options granted (do not exceed)		3 years
Minimum
Class of Stock [Line Items]
Contractual terms of options granted (do not exceed)		2 years
Employee and Director Stock Options
Class of Stock [Line Items]
Award vesting period		4 years
Number of outstanding option (in shares)	2,087,605	76,449
Weighted average period for recognition		2 years 3 months 22 days
Restricted Stock Units (RSUs)
Class of Stock [Line Items]
Award vesting period		4 years
Stock conversion offer price (in dollars per share) | $ / shares	$ 7.30
Number of outstanding option (in shares)	2,025,255	2,223
Grant date weighted average fair values based on fair assumptions, non-options (in dollars per share) | $ / shares		$ 8.02
Unrecognized compensation expense related to unvested RSU's | $		$ 31,600,000
Performance Shares
Class of Stock [Line Items]
Granted, Shares		788,000
Number of outstanding option (in shares)		0	83,000
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 | Corporate Vice President of Research and Development
Class of Stock [Line Items]
Award vesting period		3 years
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 | 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 | 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 50th Percentile Achievement | Corporate Vice President of Research and Development
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]
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights, 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]
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights, 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%
2001 Stock Plan
Class of Stock [Line Items]
Granted, Shares		0
2012 ESPP
Class of Stock [Line Items]
Number of shares available for future awards		1,700,000
Number of shares authorized						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 | $		$ 600,000	$ 0		$ 600,000
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		6,100,000
2013 Incentive Plan
Class of Stock [Line Items]
Number of shares transfered out of plan		2,500,000