Stock-Based Employee Compensation (Options) (Narrative) (Details) $ / shares in Units, $ in Millions				3 Months Ended
	Apr. 04, 2017 USD ($) shares	Sep. 23, 2010	Jul. 21, 2010 shares	Jul. 02, 2017 USD ($) plan $ / shares shares	Sep. 30, 2004 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity based plans (plans) | plan				2
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost not yet recognized | $				$ 58.3
Compensation cost not yet recognized, period for recognition				1 year 10 months 2 days
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost not yet recognized | $				$ 0.5
Compensation cost not yet recognized, period for recognition				9 months
Options vested and expected to vest (in shares)				1,300,000
Options vested and expected to vest, weighted average exercise price (in dollars per share) | $ / shares				$ 13.21
Options vested and expecting to vest, weighted average remaining contractual term				3 years 6 months
Options vested and expected to vest, aggregate intrinsic value | $				$ 15.7
Options, fully vested, outstanding (in shares)				1,000,000
Options, fully vested, outstanding, weighted average exercise price (in dollars per share) | $ / shares				$ 11.94
Options, fully vested, weighted average remaining contractual term				3 years 2 months 26 days
Options, fully vested, aggregate intrinsic value | $				$ 13.7
2008 Equity Plan | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares converted (in shares)	300,000
2008 Equity Plan | Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)				400,000
2004 Equity Plan | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				4 years
Award vesting rights (percent)				25.00%
2004 Equity Plan | Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)				5,700,000
Original number of shares of reserved for issuance (in shares)					28,500,000
Shares reserved for issuance under the amended plan (in shares)			36,800,000
Increase in shares available after amendment (in shares)			8,300,000
Original plan dilution factor to be equivalent to the amended plan (in shares)			1.74
Expiration period		7 years
Award vesting period		4 years
Award vesting rights (percent)				25.00%
One quarter of the shares vest from date of grant (in years)		1 year
Months remaining for shares to vest after one year after grant		36 months
Minimum exercise price, percent of fair market value (not less than) (percent)		100.00%
Minimum vesting period of non-performance based full value awards made under the 2004 Plan (not less than)		3 years
Minimum vesting period performance based full value awards made under the 2004 Plan (not less than)		1 year
Maximum percent of shares under the equity plan that may be granted to a participant without vesting provisions (up to) (percent)				5.00%
GigPeak, Inc. | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost not yet recognized | $	$ 3.4
Compensation cost not yet recognized, period for recognition	2 years 7 months 6 days
GigPeak, Inc. | 2008 Equity Plan | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares converted (in shares)	500,000